glamor_render.c 59.1 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
/*
 * Copyright © 2009 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 *
 * Authors:
 *    Eric Anholt <eric@anholt.net>
25 26
 *    Zhigang Gong <zhigang.gong@linux.intel.com>
 *    Junyan He <junyan.he@linux.intel.com>
27 28 29 30 31 32 33 34 35 36 37
 *
 */

/** @file glamor_render.c
 *
 * Render acceleration implementation
 */

#include "glamor_priv.h"

#include "mipict.h"
38
#include "fbpict.h"
39 40 41 42 43 44
#if 0
//#define DEBUGF(str, ...)  do {} while(0)
#define DEBUGF(str, ...) ErrorF(str, ##__VA_ARGS__)
//#define DEBUGRegionPrint(x) do {} while (0)
#define DEBUGRegionPrint RegionPrint
#endif
Zhigang Gong's avatar
Zhigang Gong committed
45

46
static struct blendinfo composite_op_info[] = {
Eric Anholt's avatar
Eric Anholt committed
47 48 49 50 51 52 53 54 55 56 57 58 59
    [PictOpClear] = {0, 0, GL_ZERO, GL_ZERO},
    [PictOpSrc] = {0, 0, GL_ONE, GL_ZERO},
    [PictOpDst] = {0, 0, GL_ZERO, GL_ONE},
    [PictOpOver] = {0, 1, GL_ONE, GL_ONE_MINUS_SRC_ALPHA},
    [PictOpOverReverse] = {1, 0, GL_ONE_MINUS_DST_ALPHA, GL_ONE},
    [PictOpIn] = {1, 0, GL_DST_ALPHA, GL_ZERO},
    [PictOpInReverse] = {0, 1, GL_ZERO, GL_SRC_ALPHA},
    [PictOpOut] = {1, 0, GL_ONE_MINUS_DST_ALPHA, GL_ZERO},
    [PictOpOutReverse] = {0, 1, GL_ZERO, GL_ONE_MINUS_SRC_ALPHA},
    [PictOpAtop] = {1, 1, GL_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA},
    [PictOpAtopReverse] = {1, 1, GL_ONE_MINUS_DST_ALPHA, GL_SRC_ALPHA},
    [PictOpXor] = {1, 1, GL_ONE_MINUS_DST_ALPHA, GL_ONE_MINUS_SRC_ALPHA},
    [PictOpAdd] = {0, 0, GL_ONE, GL_ONE},
60
};
Eric Anholt's avatar
Eric Anholt committed
61

62
#define RepeatFix			10
63
static GLuint
64
glamor_create_composite_fs(struct shader_key *key)
65
{
Eric Anholt's avatar
Eric Anholt committed
66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98
    const char *repeat_define =
        "#define RepeatNone               	      0\n"
        "#define RepeatNormal                     1\n"
        "#define RepeatPad                        2\n"
        "#define RepeatReflect                    3\n"
        "#define RepeatFix		      	      10\n"
        "uniform int 			source_repeat_mode;\n"
        "uniform int 			mask_repeat_mode;\n";
    const char *relocate_texture =
        "vec2 rel_tex_coord(vec2 texture, vec4 wh, int repeat) \n"
        "{\n"
        "   vec2 rel_tex; \n"
        "   rel_tex = texture * wh.xy; \n"
        "	if (repeat == RepeatNone)\n"
        "		return rel_tex; \n"
        "   else if (repeat == RepeatNormal) \n"
        "   	rel_tex = floor(rel_tex) + (fract(rel_tex) / wh.xy); 	\n"
        "   else if(repeat == RepeatPad) { \n"
        "           if (rel_tex.x >= 1.0) rel_tex.x = 1.0 - wh.z * wh.x / 2.;  	\n"
        "		else if(rel_tex.x < 0.0) rel_tex.x = 0.0;	  	\n"
        "           if (rel_tex.y >= 1.0) rel_tex.y = 1.0 - wh.w * wh.y / 2.;	\n"
        "		else if(rel_tex.y < 0.0) rel_tex.y = 0.0;	\n"
        "   	rel_tex = rel_tex / wh.xy; \n"
        "    } \n"
        "   else if(repeat == RepeatReflect) {\n"
        "		if ((1.0 - mod(abs(floor(rel_tex.x)), 2.0)) < 0.001)\n"
        "			rel_tex.x = 2.0 - (1.0 - fract(rel_tex.x))/wh.x;\n"
        "		else \n"
        "			rel_tex.x = fract(rel_tex.x)/wh.x;\n"
        "		if ((1.0 - mod(abs(floor(rel_tex.y)), 2.0)) < 0.001)\n"
        "			rel_tex.y = 2.0 - (1.0 - fract(rel_tex.y))/wh.y;\n"
        "		else \n"
        "			rel_tex.y = fract(rel_tex.y)/wh.y;\n"
99 100 101
        "    } \n"
        "   return rel_tex; \n"
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121
    /* The texture and the pixmap size is not match eaxctly, so can't sample it directly.
     * rel_sampler will recalculate the texture coords.*/
    const char *rel_sampler =
        " vec4 rel_sampler(sampler2D tex_image, vec2 tex, vec4 wh, int repeat, int set_alpha)\n"
        "{\n"
        "	tex = rel_tex_coord(tex, wh, repeat - RepeatFix);\n"
        "   if (repeat == RepeatFix) {\n"
        "		if (!(tex.x >= 0.0 && tex.x < 1.0 \n"
        "		    && tex.y >= 0.0 && tex.y < 1.0))\n"
        "			return vec4(0.0, 0.0, 0.0, set_alpha);\n"
        "		tex = (fract(tex) / wh.xy);\n"
        "	}\n"
        "	if (set_alpha != 1)\n"
        "		return texture2D(tex_image, tex);\n"
        "	else\n"
        "		return vec4(texture2D(tex_image, tex).rgb, 1.0);\n"
        "}\n";

    const char *source_solid_fetch =
        "uniform vec4 source;\n"
122 123 124 125
        "vec4 get_source()\n"
        "{\n"
        "	return source;\n"
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
126 127 128 129 130 131 132 133 134 135 136 137 138
    const char *source_alpha_pixmap_fetch =
        "varying vec2 source_texture;\n"
        "uniform sampler2D source_sampler;\n"
        "uniform vec4 source_wh;"
        "vec4 get_source()\n"
        "{\n"
        "   if (source_repeat_mode < RepeatFix)\n"
        "		return texture2D(source_sampler, source_texture);\n"
        "   else \n"
        "		return rel_sampler(source_sampler, source_texture,\n"
        "				   source_wh, source_repeat_mode, 0);\n"
        "}\n";
    const char *source_pixmap_fetch =
139
        "varying vec2 source_texture;\n"
Eric Anholt's avatar
Eric Anholt committed
140 141 142 143 144 145 146 147 148 149 150
        "uniform sampler2D source_sampler;\n"
        "uniform vec4 source_wh;\n"
        "vec4 get_source()\n"
        "{\n"
        "   if (source_repeat_mode < RepeatFix) \n"
        "		return vec4(texture2D(source_sampler, source_texture).rgb, 1);\n"
        "	else \n"
        "		return rel_sampler(source_sampler, source_texture,\n"
        "				   source_wh, source_repeat_mode, 1);\n"
        "}\n";
    const char *mask_solid_fetch =
151 152 153 154 155
        "uniform vec4 mask;\n"
        "vec4 get_mask()\n"
        "{\n"
        "	return mask;\n"
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
156
    const char *mask_alpha_pixmap_fetch =
157
        "varying vec2 mask_texture;\n"
Eric Anholt's avatar
Eric Anholt committed
158 159 160 161 162 163 164 165 166 167 168
        "uniform sampler2D mask_sampler;\n"
        "uniform vec4 mask_wh;\n"
        "vec4 get_mask()\n"
        "{\n"
        "   if (mask_repeat_mode < RepeatFix) \n"
        "		return texture2D(mask_sampler, mask_texture);\n"
        "   else \n"
        "		return rel_sampler(mask_sampler, mask_texture,\n"
        "				   mask_wh, mask_repeat_mode, 0);\n"
        "}\n";
    const char *mask_pixmap_fetch =
169
        "varying vec2 mask_texture;\n"
Eric Anholt's avatar
Eric Anholt committed
170 171 172 173 174 175 176 177 178 179 180
        "uniform sampler2D mask_sampler;\n"
        "uniform vec4 mask_wh;\n"
        "vec4 get_mask()\n"
        "{\n"
        "   if (mask_repeat_mode < RepeatFix) \n"
        "   	return vec4(texture2D(mask_sampler, mask_texture).rgb, 1);\n"
        "   else \n"
        "		return rel_sampler(mask_sampler, mask_texture,\n"
        "				   mask_wh, mask_repeat_mode, 1);\n"
        "}\n";
    const char *in_source_only =
181 182 183 184
        "void main()\n"
        "{\n"
        "	gl_FragColor = get_source();\n"
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
185
    const char *in_normal =
186 187 188 189
        "void main()\n"
        "{\n"
        "	gl_FragColor = get_source() * get_mask().a;\n"
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
190
    const char *in_ca_source =
191 192 193 194
        "void main()\n"
        "{\n"
        "	gl_FragColor = get_source() * get_mask();\n"
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
195
    const char *in_ca_alpha =
196 197 198 199
        "void main()\n"
        "{\n"
        "	gl_FragColor = get_source().a * get_mask();\n"
        "}\n";
200 201 202 203 204 205 206 207 208 209 210
    const char *in_ca_dual_blend =
        "out vec4 color0;\n"
        "out vec4 color1;\n"
        "void main()\n"
        "{\n"
        "	color0 = get_source() * get_mask();\n"
        "	color1 = get_source().a * get_mask();\n"
        "}\n";
    const char *header_ca_dual_blend =
        "#version 130\n";

Eric Anholt's avatar
Eric Anholt committed
211 212 213 214
    char *source;
    const char *source_fetch;
    const char *mask_fetch = "";
    const char *in;
215 216
    const char *header;
    const char *header_norm = "";
Eric Anholt's avatar
Eric Anholt committed
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248
    GLuint prog;

    switch (key->source) {
    case SHADER_SOURCE_SOLID:
        source_fetch = source_solid_fetch;
        break;
    case SHADER_SOURCE_TEXTURE_ALPHA:
        source_fetch = source_alpha_pixmap_fetch;
        break;
    case SHADER_SOURCE_TEXTURE:
        source_fetch = source_pixmap_fetch;
        break;
    default:
        FatalError("Bad composite shader source");
    }

    switch (key->mask) {
    case SHADER_MASK_NONE:
        break;
    case SHADER_MASK_SOLID:
        mask_fetch = mask_solid_fetch;
        break;
    case SHADER_MASK_TEXTURE_ALPHA:
        mask_fetch = mask_alpha_pixmap_fetch;
        break;
    case SHADER_MASK_TEXTURE:
        mask_fetch = mask_pixmap_fetch;
        break;
    default:
        FatalError("Bad composite shader mask");
    }

249
    header = header_norm;
Eric Anholt's avatar
Eric Anholt committed
250 251 252 253 254 255 256 257 258 259 260 261 262
    switch (key->in) {
    case SHADER_IN_SOURCE_ONLY:
        in = in_source_only;
        break;
    case SHADER_IN_NORMAL:
        in = in_normal;
        break;
    case SHADER_IN_CA_SOURCE:
        in = in_ca_source;
        break;
    case SHADER_IN_CA_ALPHA:
        in = in_ca_alpha;
        break;
263 264 265 266
    case SHADER_IN_CA_DUAL_BLEND:
        in = in_ca_dual_blend;
        header = header_ca_dual_blend;
        break;
Eric Anholt's avatar
Eric Anholt committed
267 268 269 270
    default:
        FatalError("Bad composite IN type");
    }

271 272 273 274
    XNFasprintf(&source,
                "%s"
                GLAMOR_DEFAULT_PRECISION
                "%s%s%s%s%s%s", header, repeat_define, relocate_texture,
Eric Anholt's avatar
Eric Anholt committed
275 276
                rel_sampler, source_fetch, mask_fetch, in);

277
    prog = glamor_compile_glsl_prog(GL_FRAGMENT_SHADER, source);
Eric Anholt's avatar
Eric Anholt committed
278 279 280
    free(source);

    return prog;
281 282 283
}

static GLuint
284
glamor_create_composite_vs(struct shader_key *key)
285
{
Eric Anholt's avatar
Eric Anholt committed
286 287 288 289 290 291
    const char *main_opening =
        "attribute vec4 v_position;\n"
        "attribute vec4 v_texcoord0;\n"
        "attribute vec4 v_texcoord1;\n"
        "varying vec2 source_texture;\n"
        "varying vec2 mask_texture;\n"
292 293 294
        "void main()\n"
        "{\n"
        "	gl_Position = v_position;\n";
Eric Anholt's avatar
Eric Anholt committed
295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313
    const char *source_coords = "	source_texture = v_texcoord0.xy;\n";
    const char *mask_coords = "	mask_texture = v_texcoord1.xy;\n";
    const char *main_closing = "}\n";
    const char *source_coords_setup = "";
    const char *mask_coords_setup = "";
    char *source;
    GLuint prog;

    if (key->source != SHADER_SOURCE_SOLID)
        source_coords_setup = source_coords;

    if (key->mask != SHADER_MASK_NONE && key->mask != SHADER_MASK_SOLID)
        mask_coords_setup = mask_coords;

    XNFasprintf(&source,
                "%s%s%s%s",
                main_opening,
                source_coords_setup, mask_coords_setup, main_closing);

314
    prog = glamor_compile_glsl_prog(GL_VERTEX_SHADER, source);
Eric Anholt's avatar
Eric Anholt committed
315 316 317
    free(source);

    return prog;
318 319 320
}

static void
321
glamor_create_composite_shader(ScreenPtr screen, struct shader_key *key,
322
                               glamor_composite_shader *shader)
323
{
Eric Anholt's avatar
Eric Anholt committed
324 325 326 327
    GLuint vs, fs, prog;
    GLint source_sampler_uniform_location, mask_sampler_uniform_location;
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);

328
    glamor_make_current(glamor_priv);
329
    vs = glamor_create_composite_vs(key);
Eric Anholt's avatar
Eric Anholt committed
330
    if (vs == 0)
331
        return;
332
    fs = glamor_create_composite_fs(key);
Eric Anholt's avatar
Eric Anholt committed
333
    if (fs == 0)
334
        return;
Eric Anholt's avatar
Eric Anholt committed
335

336 337 338
    prog = glCreateProgram();
    glAttachShader(prog, vs);
    glAttachShader(prog, fs);
Eric Anholt's avatar
Eric Anholt committed
339

340 341 342
    glBindAttribLocation(prog, GLAMOR_VERTEX_POS, "v_position");
    glBindAttribLocation(prog, GLAMOR_VERTEX_SOURCE, "v_texcoord0");
    glBindAttribLocation(prog, GLAMOR_VERTEX_MASK, "v_texcoord1");
Eric Anholt's avatar
Eric Anholt committed
343

344 345 346 347
    if (key->in == SHADER_IN_CA_DUAL_BLEND) {
        glBindFragDataLocationIndexed(prog, 0, 0, "color0");
        glBindFragDataLocationIndexed(prog, 0, 1, "color1");
    }
348
    glamor_link_glsl_prog(screen, prog, "composite");
Eric Anholt's avatar
Eric Anholt committed
349 350 351

    shader->prog = prog;

352
    glUseProgram(prog);
Eric Anholt's avatar
Eric Anholt committed
353 354

    if (key->source == SHADER_SOURCE_SOLID) {
355
        shader->source_uniform_location = glGetUniformLocation(prog, "source");
Eric Anholt's avatar
Eric Anholt committed
356 357 358
    }
    else {
        source_sampler_uniform_location =
359 360 361
            glGetUniformLocation(prog, "source_sampler");
        glUniform1i(source_sampler_uniform_location, 0);
        shader->source_wh = glGetUniformLocation(prog, "source_wh");
Eric Anholt's avatar
Eric Anholt committed
362
        shader->source_repeat_mode =
363
            glGetUniformLocation(prog, "source_repeat_mode");
Eric Anholt's avatar
Eric Anholt committed
364 365 366 367
    }

    if (key->mask != SHADER_MASK_NONE) {
        if (key->mask == SHADER_MASK_SOLID) {
368
            shader->mask_uniform_location = glGetUniformLocation(prog, "mask");
Eric Anholt's avatar
Eric Anholt committed
369 370 371
        }
        else {
            mask_sampler_uniform_location =
372 373 374
                glGetUniformLocation(prog, "mask_sampler");
            glUniform1i(mask_sampler_uniform_location, 1);
            shader->mask_wh = glGetUniformLocation(prog, "mask_wh");
Eric Anholt's avatar
Eric Anholt committed
375
            shader->mask_repeat_mode =
376
                glGetUniformLocation(prog, "mask_repeat_mode");
Eric Anholt's avatar
Eric Anholt committed
377 378
        }
    }
379 380
}

381
static glamor_composite_shader *
Zhigang Gong's avatar
Zhigang Gong committed
382
glamor_lookup_composite_shader(ScreenPtr screen, struct
Eric Anholt's avatar
Eric Anholt committed
383 384
                               shader_key
                               *key)
385
{
Eric Anholt's avatar
Eric Anholt committed
386 387
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
    glamor_composite_shader *shader;
388

Eric Anholt's avatar
Eric Anholt committed
389 390 391
    shader = &glamor_priv->composite_shader[key->source][key->mask][key->in];
    if (shader->prog == 0)
        glamor_create_composite_shader(screen, key, shader);
392

Eric Anholt's avatar
Eric Anholt committed
393
    return shader;
394
}
Zhigang Gong's avatar
Zhigang Gong committed
395

396 397
static Bool
glamor_set_composite_op(ScreenPtr screen,
Eric Anholt's avatar
Eric Anholt committed
398
                        CARD8 op, struct blendinfo *op_info_result,
399 400
                        PicturePtr dest, PicturePtr mask,
                        enum ca_state ca_state)
401
{
Eric Anholt's avatar
Eric Anholt committed
402 403 404 405 406 407 408
    GLenum source_blend, dest_blend;
    struct blendinfo *op_info;

    if (op >= ARRAY_SIZE(composite_op_info)) {
        glamor_fallback("unsupported render op %d \n", op);
        return GL_FALSE;
    }
409

Eric Anholt's avatar
Eric Anholt committed
410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425
    op_info = &composite_op_info[op];

    source_blend = op_info->source_blend;
    dest_blend = op_info->dest_blend;

    /* If there's no dst alpha channel, adjust the blend op so that we'll treat
     * it as always 1.
     */
    if (PICT_FORMAT_A(dest->format) == 0 && op_info->dest_alpha) {
        if (source_blend == GL_DST_ALPHA)
            source_blend = GL_ONE;
        else if (source_blend == GL_ONE_MINUS_DST_ALPHA)
            source_blend = GL_ZERO;
    }

    /* Set up the source alpha value for blending in component alpha mode. */
426 427 428 429 430 431 432 433 434 435 436 437 438
    if (ca_state == CA_DUAL_BLEND) {
        switch (dest_blend) {
        case GL_SRC_ALPHA:
            dest_blend = GL_SRC1_COLOR;
            break;
        case GL_ONE_MINUS_SRC_ALPHA:
            dest_blend = GL_ONE_MINUS_SRC1_COLOR;
            break;
        }
    } else if (mask && mask->componentAlpha
               && PICT_FORMAT_RGB(mask->format) != 0 && op_info->source_alpha) {
        switch (dest_blend) {
        case GL_SRC_ALPHA:
Eric Anholt's avatar
Eric Anholt committed
439
            dest_blend = GL_SRC_COLOR;
440 441
            break;
        case GL_ONE_MINUS_SRC_ALPHA:
Eric Anholt's avatar
Eric Anholt committed
442
            dest_blend = GL_ONE_MINUS_SRC_COLOR;
443 444
            break;
        }
Eric Anholt's avatar
Eric Anholt committed
445 446 447 448 449 450 451 452
    }

    op_info_result->source_blend = source_blend;
    op_info_result->dest_blend = dest_blend;
    op_info_result->source_alpha = op_info->source_alpha;
    op_info_result->dest_alpha = op_info->dest_alpha;

    return TRUE;
453 454 455
}

static void
456
glamor_set_composite_texture(glamor_screen_private *glamor_priv, int unit,
Eric Anholt's avatar
Eric Anholt committed
457
                             PicturePtr picture,
458
                             PixmapPtr pixmap,
Eric Anholt's avatar
Eric Anholt committed
459
                             GLuint wh_location, GLuint repeat_location)
460
{
461
    glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
Eric Anholt's avatar
Eric Anholt committed
462 463 464
    float wh[4];
    int repeat_type;

465
    glamor_make_current(glamor_priv);
466
    glActiveTexture(GL_TEXTURE0 + unit);
467
    glBindTexture(GL_TEXTURE_2D, pixmap_priv->fbo->tex);
Eric Anholt's avatar
Eric Anholt committed
468 469 470
    repeat_type = picture->repeatType;
    switch (picture->repeatType) {
    case RepeatNone:
471 472 473 474 475 476 477 478 479 480
        if (glamor_priv->gl_flavor != GLAMOR_GL_ES2) {
            /* XXX  GLES2 doesn't support GL_CLAMP_TO_BORDER. */
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S,
                            GL_CLAMP_TO_BORDER);
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T,
                            GL_CLAMP_TO_BORDER);
        } else {
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
        }
Eric Anholt's avatar
Eric Anholt committed
481 482
        break;
    case RepeatNormal:
483 484
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
Eric Anholt's avatar
Eric Anholt committed
485 486
        break;
    case RepeatPad:
487 488
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
Eric Anholt's avatar
Eric Anholt committed
489 490
        break;
    case RepeatReflect:
491 492
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
Eric Anholt's avatar
Eric Anholt committed
493 494 495 496 497 498 499
        break;
    }

    switch (picture->filter) {
    default:
    case PictFilterFast:
    case PictFilterNearest:
500 501
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
Eric Anholt's avatar
Eric Anholt committed
502 503 504 505
        break;
    case PictFilterGood:
    case PictFilterBest:
    case PictFilterBilinear:
506 507
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
Eric Anholt's avatar
Eric Anholt committed
508 509
        break;
    }
510

Eric Anholt's avatar
Eric Anholt committed
511 512 513 514 515 516 517
    /*
     *  GLES2 doesn't support RepeatNone. We need to fix it anyway.
     *
     **/
    if (repeat_type != RepeatNone)
        repeat_type += RepeatFix;
    else if (glamor_priv->gl_flavor == GLAMOR_GL_ES2
518
             || glamor_pixmap_priv_is_large(pixmap_priv)) {
519
        if (picture->transform)
Eric Anholt's avatar
Eric Anholt committed
520 521 522
            repeat_type += RepeatFix;
    }
    if (repeat_type >= RepeatFix) {
523
        glamor_pixmap_fbo_fix_wh_ratio(wh, pixmap, pixmap_priv);
Eric Anholt's avatar
Eric Anholt committed
524 525 526
        if ((wh[0] != 1.0 || wh[1] != 1.0)
            || (glamor_priv->gl_flavor == GLAMOR_GL_ES2
                && repeat_type == RepeatFix))
527
            glUniform4fv(wh_location, 1, wh);
Eric Anholt's avatar
Eric Anholt committed
528 529 530
        else
            repeat_type -= RepeatFix;
    }
531
    glUniform1i(repeat_location, repeat_type);
532 533 534
}

static void
535
glamor_set_composite_solid(float *color, GLint uniform_location)
536
{
537
    glUniform4fv(uniform_location, 1, color);
538 539
}

540 541 542
static char
glamor_get_picture_location(PicturePtr picture)
{
Eric Anholt's avatar
Eric Anholt committed
543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558
    if (picture == NULL)
        return ' ';

    if (picture->pDrawable == NULL) {
        switch (picture->pSourcePict->type) {
        case SourcePictTypeSolidFill:
            return 'c';
        case SourcePictTypeLinear:
            return 'l';
        case SourcePictTypeRadial:
            return 'r';
        default:
            return '?';
        }
    }
    return glamor_get_drawable_location(picture->pDrawable);
559 560
}

561
static void *
562
glamor_setup_composite_vbo(ScreenPtr screen, int n_verts)
563
{
Eric Anholt's avatar
Eric Anholt committed
564 565
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
    int vert_size;
566 567
    char *vbo_offset;
    float *vb;
Eric Anholt's avatar
Eric Anholt committed
568

569
    glamor_priv->render_nr_quads = 0;
Eric Anholt's avatar
Eric Anholt committed
570 571 572 573 574 575 576 577
    glamor_priv->vb_stride = 2 * sizeof(float);
    if (glamor_priv->has_source_coords)
        glamor_priv->vb_stride += 2 * sizeof(float);
    if (glamor_priv->has_mask_coords)
        glamor_priv->vb_stride += 2 * sizeof(float);

    vert_size = n_verts * glamor_priv->vb_stride;

578
    glamor_make_current(glamor_priv);
579
    vb = glamor_get_vbo_space(screen, vert_size, &vbo_offset);
Eric Anholt's avatar
Eric Anholt committed
580

581
    glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT, GL_FALSE,
582
                          glamor_priv->vb_stride, vbo_offset);
583
    glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
Eric Anholt's avatar
Eric Anholt committed
584 585

    if (glamor_priv->has_source_coords) {
586 587 588
        glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2,
                              GL_FLOAT, GL_FALSE,
                              glamor_priv->vb_stride,
589
                              vbo_offset + 2 * sizeof(float));
590
        glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
Eric Anholt's avatar
Eric Anholt committed
591 592 593
    }

    if (glamor_priv->has_mask_coords) {
594 595
        glVertexAttribPointer(GLAMOR_VERTEX_MASK, 2, GL_FLOAT, GL_FALSE,
                              glamor_priv->vb_stride,
596 597
                              vbo_offset + (glamor_priv->has_source_coords ?
                                            4 : 2) * sizeof(float));
598
        glEnableVertexAttribArray(GLAMOR_VERTEX_MASK);
Eric Anholt's avatar
Eric Anholt committed
599
    }
600

601
    return vb;
602 603 604 605 606
}

static void
glamor_flush_composite_rects(ScreenPtr screen)
{
Eric Anholt's avatar
Eric Anholt committed
607
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
Chris Wilson's avatar
Chris Wilson committed
608

609
    glamor_make_current(glamor_priv);
610

611
    if (!glamor_priv->render_nr_quads)
Eric Anholt's avatar
Eric Anholt committed
612
        return;
He Junyan's avatar
He Junyan committed
613

614
    glamor_glDrawArrays_GL_QUADS(glamor_priv, glamor_priv->render_nr_quads);
615 616
}

617
static const int pict_format_combine_tab[][3] = {
Eric Anholt's avatar
Eric Anholt committed
618 619
    {PICT_TYPE_ARGB, PICT_TYPE_A, PICT_TYPE_ARGB},
    {PICT_TYPE_ABGR, PICT_TYPE_A, PICT_TYPE_ABGR},
Zhigang Gong's avatar
Zhigang Gong committed
620
};
621

Zhigang Gong's avatar
Zhigang Gong committed
622 623
static Bool
combine_pict_format(PictFormatShort * des, const PictFormatShort src,
Eric Anholt's avatar
Eric Anholt committed
624
                    const PictFormatShort mask, enum shader_in in_ca)
625
{
Eric Anholt's avatar
Eric Anholt committed
626
    PictFormatShort new_vis;
627
    int src_type, mask_type, src_bpp;
Eric Anholt's avatar
Eric Anholt committed
628 629 630 631 632 633 634 635
    int i;

    if (src == mask) {
        *des = src;
        return TRUE;
    }
    src_bpp = PICT_FORMAT_BPP(src);

636
    assert(src_bpp == PICT_FORMAT_BPP(mask));
Eric Anholt's avatar
Eric Anholt committed
637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654

    new_vis = PICT_FORMAT_VIS(src) | PICT_FORMAT_VIS(mask);

    switch (in_ca) {
    case SHADER_IN_SOURCE_ONLY:
        return TRUE;
    case SHADER_IN_NORMAL:
        src_type = PICT_FORMAT_TYPE(src);
        mask_type = PICT_TYPE_A;
        break;
    case SHADER_IN_CA_SOURCE:
        src_type = PICT_FORMAT_TYPE(src);
        mask_type = PICT_FORMAT_TYPE(mask);
        break;
    case SHADER_IN_CA_ALPHA:
        src_type = PICT_TYPE_A;
        mask_type = PICT_FORMAT_TYPE(mask);
        break;
655 656 657 658
    case SHADER_IN_CA_DUAL_BLEND:
        src_type = PICT_FORMAT_TYPE(src);
        mask_type = PICT_FORMAT_TYPE(mask);
        break;
Eric Anholt's avatar
Eric Anholt committed
659 660 661 662 663 664 665 666 667
    default:
        return FALSE;
    }

    if (src_type == mask_type) {
        *des = PICT_VISFORMAT(src_bpp, src_type, new_vis);
        return TRUE;
    }

668
    for (i = 0; i < ARRAY_SIZE(pict_format_combine_tab); i++) {
Eric Anholt's avatar
Eric Anholt committed
669 670 671 672 673 674 675 676 677 678
        if ((src_type == pict_format_combine_tab[i][0]
             && mask_type == pict_format_combine_tab[i][1])
            || (src_type == pict_format_combine_tab[i][1]
                && mask_type == pict_format_combine_tab[i][0])) {
            *des = PICT_VISFORMAT(src_bpp, pict_format_combine_tab[i]
                                  [2], new_vis);
            return TRUE;
        }
    }
    return FALSE;
679 680
}

681
static void
682 683
glamor_set_normalize_tcoords_generic(PixmapPtr pixmap,
                                     glamor_pixmap_private *priv,
Eric Anholt's avatar
Eric Anholt committed
684 685 686 687
                                     int repeat_type,
                                     float *matrix,
                                     float xscale, float yscale,
                                     int x1, int y1, int x2, int y2,
688
                                     float *texcoords,
Eric Anholt's avatar
Eric Anholt committed
689
                                     int stride)
690
{
Eric Anholt's avatar
Eric Anholt committed
691 692 693
    if (!matrix && repeat_type == RepeatNone)
        glamor_set_normalize_tcoords_ext(priv, xscale, yscale,
                                         x1, y1,
694
                                         x2, y2, texcoords, stride);
Eric Anholt's avatar
Eric Anholt committed
695 696 697 698 699 700
    else if (matrix && repeat_type == RepeatNone)
        glamor_set_transformed_normalize_tcoords_ext(priv, matrix, xscale,
                                                     yscale, x1, y1,
                                                     x2, y2,
                                                     texcoords, stride);
    else if (!matrix && repeat_type != RepeatNone)
701
        glamor_set_repeat_normalize_tcoords_ext(pixmap, priv, repeat_type,
Eric Anholt's avatar
Eric Anholt committed
702 703 704
                                                xscale, yscale,
                                                x1, y1,
                                                x2, y2,
705
                                                texcoords, stride);
Eric Anholt's avatar
Eric Anholt committed
706
    else if (matrix && repeat_type != RepeatNone)
707
        glamor_set_repeat_transformed_normalize_tcoords_ext(pixmap, priv, repeat_type,
Eric Anholt's avatar
Eric Anholt committed
708 709
                                                            matrix, xscale,
                                                            yscale, x1, y1, x2,
710
                                                            y2,
Eric Anholt's avatar
Eric Anholt committed
711
                                                            texcoords, stride);
712 713
}

714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736
/**
 * Returns whether the general composite path supports this picture
 * format for a pixmap that is permanently stored in an FBO (as
 * opposed to the GLAMOR_PIXMAP_DYNAMIC_UPLOAD path).
 *
 * We could support many more formats by using GL_ARB_texture_view to
 * parse the same bits as different formats.  For now, we only support
 * tweaking whether we sample the alpha bits of an a8r8g8b8, or just
 * force them to 1.
 */
static Bool
glamor_render_format_is_supported(PictFormatShort format)
{
    switch (format) {
    case PICT_a8r8g8b8:
    case PICT_x8r8g8b8:
    case PICT_a8:
        return TRUE;
    default:
        return FALSE;
    }
}

737
static Bool
Eric Anholt's avatar
Eric Anholt committed
738 739 740 741
glamor_composite_choose_shader(CARD8 op,
                               PicturePtr source,
                               PicturePtr mask,
                               PicturePtr dest,
742 743 744
                               PixmapPtr source_pixmap,
                               PixmapPtr mask_pixmap,
                               PixmapPtr dest_pixmap,
745 746 747
                               glamor_pixmap_private *source_pixmap_priv,
                               glamor_pixmap_private *mask_pixmap_priv,
                               glamor_pixmap_private *dest_pixmap_priv,
Eric Anholt's avatar
Eric Anholt committed
748 749 750
                               struct shader_key *s_key,
                               glamor_composite_shader ** shader,
                               struct blendinfo *op_info,
751 752
                               PictFormatShort *psaved_source_format,
                               enum ca_state ca_state)
753
{
Eric Anholt's avatar
Eric Anholt committed
754
    ScreenPtr screen = dest->pDrawable->pScreen;
755
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
Eric Anholt's avatar
Eric Anholt committed
756 757 758 759 760 761 762 763 764 765 766 767 768
    enum glamor_pixmap_status source_status = GLAMOR_NONE;
    enum glamor_pixmap_status mask_status = GLAMOR_NONE;
    PictFormatShort saved_source_format = 0;
    struct shader_key key;
    GLfloat source_solid_color[4];
    GLfloat mask_solid_color[4];
    Bool ret = FALSE;

    if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(dest_pixmap_priv)) {
        glamor_fallback("dest has no fbo.\n");
        goto fail;
    }

769 770 771 772 773
    if (!glamor_render_format_is_supported(dest->format)) {
        glamor_fallback("Unsupported dest picture format.\n");
        goto fail;
    }

Eric Anholt's avatar
Eric Anholt committed
774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794
    memset(&key, 0, sizeof(key));
    if (!source) {
        key.source = SHADER_SOURCE_SOLID;
        source_solid_color[0] = 0.0;
        source_solid_color[1] = 0.0;
        source_solid_color[2] = 0.0;
        source_solid_color[3] = 0.0;
    }
    else if (!source->pDrawable) {
        if (source->pSourcePict->type == SourcePictTypeSolidFill) {
            key.source = SHADER_SOURCE_SOLID;
            glamor_get_rgba_from_pixel(source->pSourcePict->solidFill.color,
                                       &source_solid_color[0],
                                       &source_solid_color[1],
                                       &source_solid_color[2],
                                       &source_solid_color[3], PICT_a8r8g8b8);
        }
        else
            goto fail;
    }
    else {
795 796 797 798
        if (PICT_FORMAT_A(source->format))
            key.source = SHADER_SOURCE_TEXTURE_ALPHA;
        else
            key.source = SHADER_SOURCE_TEXTURE;
Eric Anholt's avatar
Eric Anholt committed
799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823
    }

    if (mask) {
        if (!mask->pDrawable) {
            if (mask->pSourcePict->type == SourcePictTypeSolidFill) {
                key.mask = SHADER_MASK_SOLID;
                glamor_get_rgba_from_pixel
                    (mask->pSourcePict->solidFill.color,
                     &mask_solid_color[0],
                     &mask_solid_color[1],
                     &mask_solid_color[2], &mask_solid_color[3], PICT_a8r8g8b8);
            }
            else
                goto fail;
        }
        else {
            key.mask = SHADER_MASK_TEXTURE_ALPHA;
        }

        if (!mask->componentAlpha) {
            key.in = SHADER_IN_NORMAL;
        }
        else {
            if (op == PictOpClear)
                key.mask = SHADER_MASK_NONE;
824 825
            else if (glamor_priv->has_dual_blend)
                key.in = SHADER_IN_CA_DUAL_BLEND;
Eric Anholt's avatar
Eric Anholt committed
826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859
            else if (op == PictOpSrc || op == PictOpAdd
                     || op == PictOpIn || op == PictOpOut
                     || op == PictOpOverReverse)
                key.in = SHADER_IN_CA_SOURCE;
            else if (op == PictOpOutReverse || op == PictOpInReverse) {
                key.in = SHADER_IN_CA_ALPHA;
            }
            else {
                glamor_fallback("Unsupported component alpha op: %d\n", op);
                goto fail;
            }
        }
    }
    else {
        key.mask = SHADER_MASK_NONE;
        key.in = SHADER_IN_SOURCE_ONLY;
    }

    if (source && source->alphaMap) {
        glamor_fallback("source alphaMap\n");
        goto fail;
    }
    if (mask && mask->alphaMap) {
        glamor_fallback("mask alphaMap\n");
        goto fail;
    }

    if (key.source == SHADER_SOURCE_TEXTURE ||
        key.source == SHADER_SOURCE_TEXTURE_ALPHA) {
        if (source_pixmap == dest_pixmap) {
            /* XXX source and the dest share the same texture.
             * Does it need special handle? */
            glamor_fallback("source == dest\n");
        }
860
        if (source_pixmap_priv->gl_fbo == GLAMOR_FBO_UNATTACHED) {
861
#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
Eric Anholt's avatar
Eric Anholt committed
862
            source_status = GLAMOR_UPLOAD_PENDING;
863
#else
Eric Anholt's avatar
Eric Anholt committed
864 865
            glamor_fallback("no texture in source\n");
            goto fail;
866
#endif
Eric Anholt's avatar
Eric Anholt committed
867 868 869 870 871 872 873 874 875
        }
    }

    if (key.mask == SHADER_MASK_TEXTURE ||
        key.mask == SHADER_MASK_TEXTURE_ALPHA) {
        if (mask_pixmap == dest_pixmap) {
            glamor_fallback("mask == dest\n");
            goto fail;
        }
876
        if (mask_pixmap_priv->gl_fbo == GLAMOR_FBO_UNATTACHED) {
877
#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
Eric Anholt's avatar
Eric Anholt committed
878
            mask_status = GLAMOR_UPLOAD_PENDING;
879
#else
Eric Anholt's avatar
Eric Anholt committed
880 881
            glamor_fallback("no texture in mask\n");
            goto fail;
882
#endif
Eric Anholt's avatar
Eric Anholt committed
883 884
        }
    }
885

886
#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
Eric Anholt's avatar
Eric Anholt committed
887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940
    if (source_status == GLAMOR_UPLOAD_PENDING
        && mask_status == GLAMOR_UPLOAD_PENDING
        && source_pixmap == mask_pixmap) {

        if (source->format != mask->format) {
            saved_source_format = source->format;

            if (!combine_pict_format(&source->format, source->format,
                                     mask->format, key.in)) {
                glamor_fallback("combine source %x mask %x failed.\n",
                                source->format, mask->format);
                goto fail;
            }

            /* XXX
             * By default, glamor_upload_picture_to_texture will wire alpha to 1
             * if one picture doesn't have alpha. So we don't do that again in
             * rendering function. But here is a special case, as source and
             * mask share the same texture but may have different formats. For
             * example, source doesn't have alpha, but mask has alpha. Then the
             * texture will have the alpha value for the mask. And will not wire
             * to 1 for the source. In this case, we have to use different shader
             * to wire the source's alpha to 1.
             *
             * But this may cause a potential problem if the source's repeat mode
             * is REPEAT_NONE, and if the source is smaller than the dest, then
             * for the region not covered by the source may be painted incorrectly.
             * because we wire the alpha to 1.
             *
             **/
            if (!PICT_FORMAT_A(saved_source_format)
                && PICT_FORMAT_A(mask->format))
                key.source = SHADER_SOURCE_TEXTURE;

            if (!PICT_FORMAT_A(mask->format)
                && PICT_FORMAT_A(saved_source_format))
                key.mask = SHADER_MASK_TEXTURE;

            mask_status = GLAMOR_NONE;
        }

        source_status = glamor_upload_picture_to_texture(source);
        if (source_status != GLAMOR_UPLOAD_DONE) {
            glamor_fallback("Failed to upload source texture.\n");
            goto fail;
        }
    }
    else {
        if (source_status == GLAMOR_UPLOAD_PENDING) {
            source_status = glamor_upload_picture_to_texture(source);
            if (source_status != GLAMOR_UPLOAD_DONE) {
                glamor_fallback("Failed to upload source texture.\n");
                goto fail;
            }
941 942 943 944 945
        } else {
            if (!glamor_render_format_is_supported(source->format)) {
                glamor_fallback("Unsupported source picture format.\n");
                goto fail;
            }
Eric Anholt's avatar
Eric Anholt committed
946 947 948 949 950 951 952 953
        }

        if (mask_status == GLAMOR_UPLOAD_PENDING) {
            mask_status = glamor_upload_picture_to_texture(mask);
            if (mask_status != GLAMOR_UPLOAD_DONE) {
                glamor_fallback("Failed to upload mask texture.\n");
                goto fail;
            }
954 955 956 957 958
        } else if (mask) {
            if (!glamor_render_format_is_supported(mask->format)) {
                glamor_fallback("Unsupported mask picture format.\n");
                goto fail;
            }
Eric Anholt's avatar
Eric Anholt committed
959 960
        }
    }
961
#endif
962

963 964 965 966 967 968 969 970 971 972
    /* If the source and mask are two differently-formatted views of
     * the same pixmap bits, and the pixmap was already uploaded (so
     * the dynamic code above doesn't apply), then fall back to
     * software.  We should use texture views to fix this properly.
     */
    if (source_pixmap && source_pixmap == mask_pixmap &&
        source->format != mask->format) {
        goto fail;
    }

973
    if (!glamor_set_composite_op(screen, op, op_info, dest, mask, ca_state))
Eric Anholt's avatar
Eric Anholt committed
974 975 976 977
        goto fail;

    *shader = glamor_lookup_composite_shader(screen, &key);
    if ((*shader)->prog == 0) {
978
        glamor_fallback("no shader program for this render acccel mode\n");
Eric Anholt's avatar
Eric Anholt committed
979 980 981 982 983 984 985
        goto fail;
    }

    if (key.source == SHADER_SOURCE_SOLID)
        memcpy(&(*shader)->source_solid_color[0],
               source_solid_color, 4 * sizeof(float));
    else {
986
        (*shader)->source_pixmap = source_pixmap;
Eric Anholt's avatar
Eric Anholt committed
987 988 989 990 991 992 993
        (*shader)->source = source;
    }

    if (key.mask == SHADER_MASK_SOLID)
        memcpy(&(*shader)->mask_solid_color[0],
               mask_solid_color, 4 * sizeof(float));
    else {
994
        (*shader)->mask_pixmap = mask_pixmap;
Eric Anholt's avatar
Eric Anholt committed
995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007
        (*shader)->mask = mask;
    }

    ret = TRUE;
    memcpy(s_key, &key, sizeof(key));
    *psaved_source_format = saved_source_format;
    goto done;

 fail:
    if (saved_source_format)
        source->format = saved_source_format;
 done:
    return ret;
1008 1009
}

1010 1011 1012
static void
glamor_composite_set_shader_blend(glamor_screen_private *glamor_priv,
                                  glamor_pixmap_private *dest_priv,
Eric Anholt's avatar
Eric Anholt committed
1013
                                  struct shader_key *key,
1014
                                  glamor_composite_shader *shader,
Eric Anholt's avatar
Eric Anholt committed
1015
                                  struct blendinfo *op_info)
1016
{
1017
    glamor_make_current(glamor_priv);
1018
    glUseProgram(shader->prog);
Eric Anholt's avatar
Eric Anholt committed
1019 1020

    if (key->source == SHADER_SOURCE_SOLID) {
1021
        glamor_set_composite_solid(shader->source_solid_color,
Eric Anholt's avatar
Eric Anholt committed
1022 1023 1024 1025 1026
                                   shader->source_uniform_location);
    }
    else {
        glamor_set_composite_texture(glamor_priv, 0,
                                     shader->source,
1027
                                     shader->source_pixmap, shader->source_wh,
Eric Anholt's avatar
Eric Anholt committed
1028 1029 1030 1031 1032
                                     shader->source_repeat_mode);
    }

    if (key->mask != SHADER_MASK_NONE) {
        if (key->mask == SHADER_MASK_SOLID) {
1033
            glamor_set_composite_solid(shader->mask_solid_color,
Eric Anholt's avatar
Eric Anholt committed
1034 1035 1036 1037 1038
                                       shader->mask_uniform_location);
        }
        else {
            glamor_set_composite_texture(glamor_priv, 1,
                                         shader->mask,
1039
                                         shader->mask_pixmap, shader->mask_wh,
Eric Anholt's avatar
Eric Anholt committed
1040 1041 1042 1043 1044
                                         shader->mask_repeat_mode);
        }
    }

    if (op_info->source_blend == GL_ONE && op_info->dest_blend == GL_ZERO) {
1045
        glDisable(GL_BLEND);
Eric Anholt's avatar
Eric Anholt committed
1046 1047
    }
    else {
1048 1049
        glEnable(GL_BLEND);
        glBlendFunc(op_info->source_blend, op_info->dest_blend);
Eric Anholt's avatar
Eric Anholt committed
1050
    }
1051 1052 1053 1054
}

static Bool
glamor_composite_with_shader(CARD8 op,
Eric Anholt's avatar
Eric Anholt committed
1055 1056 1057
                             PicturePtr source,
                             PicturePtr mask,
                             PicturePtr dest,
1058 1059 1060
                             PixmapPtr source_pixmap,
                             PixmapPtr mask_pixmap,
                             PixmapPtr dest_pixmap,
1061 1062 1063 1064
                             glamor_pixmap_private *source_pixmap_priv,
                             glamor_pixmap_private *mask_pixmap_priv,
                             glamor_pixmap_private *dest_pixmap_priv,
                             int nrect, glamor_composite_rect_t *rects,
1065
                             enum ca_state ca_state)
1066
{
Eric Anholt's avatar
Eric Anholt committed
1067
    ScreenPtr screen = dest->pDrawable->pScreen;
1068
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
Eric Anholt's avatar
Eric Anholt committed
1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083
    GLfloat dst_xscale, dst_yscale;
    GLfloat mask_xscale = 1, mask_yscale = 1, src_xscale = 1, src_yscale = 1;
    struct shader_key key, key_ca;
    int dest_x_off, dest_y_off;
    int source_x_off, source_y_off;
    int mask_x_off, mask_y_off;
    PictFormatShort saved_source_format = 0;
    float src_matrix[9], mask_matrix[9];
    float *psrc_matrix = NULL, *pmask_matrix = NULL;
    int nrect_max;
    Bool ret = FALSE;
    glamor_composite_shader *shader = NULL, *shader_ca = NULL;
    struct blendinfo op_info, op_info_ca;

    if (!glamor_composite_choose_shader(op, source, mask, dest,
1084
                                        source_pixmap, mask_pixmap, dest_pixmap,
Eric Anholt's avatar
Eric Anholt committed
1085 1086 1087
                                        source_pixmap_priv, mask_pixmap_priv,
                                        dest_pixmap_priv,
                                        &key, &shader, &op_info,
1088
                                        &saved_source_format, ca_state)) {
Eric Anholt's avatar
Eric Anholt committed
1089 1090 1091
        glamor_fallback("glamor_composite_choose_shader failed\n");
        return ret;
    }
1092
    if (ca_state == CA_TWO_PASS) {
Eric Anholt's avatar
Eric Anholt committed
1093
        if (!glamor_composite_choose_shader(PictOpAdd, source, mask, dest,
1094
                                            source_pixmap, mask_pixmap, dest_pixmap,
Eric Anholt's avatar
Eric Anholt committed
1095 1096 1097
                                            source_pixmap_priv,
                                            mask_pixmap_priv, dest_pixmap_priv,
                                            &key_ca, &shader_ca, &op_info_ca,
1098
                                            &saved_source_format, ca_state)) {
Eric Anholt's avatar
Eric Anholt committed
1099 1100 1101 1102 1103
            glamor_fallback("glamor_composite_choose_shader failed\n");
            return ret;
        }
    }

1104 1105
    glamor_set_destination_pixmap_priv_nc(glamor_priv, dest_pixmap, dest_pixmap_priv);
    glamor_composite_set_shader_blend(glamor_priv, dest_pixmap_priv, &key, shader, &op_info);
1106
    glamor_set_alu(screen, GXcopy);
Eric Anholt's avatar
Eric Anholt committed
1107

1108
    glamor_make_current(glamor_priv);
Eric Anholt's avatar
Eric Anholt committed
1109 1110 1111 1112 1113 1114 1115 1116 1117

    glamor_priv->has_source_coords = key.source != SHADER_SOURCE_SOLID;
    glamor_priv->has_mask_coords = (key.mask != SHADER_MASK_NONE &&
                                    key.mask != SHADER_MASK_SOLID);

    dest_pixmap = glamor_get_drawable_pixmap(dest->pDrawable);
    dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
    glamor_get_drawable_deltas(dest->pDrawable, dest_pixmap,
                               &dest_x_off, &dest_y_off);
1118
    pixmap_priv_get_dest_scale(dest_pixmap, dest_pixmap_priv, &dst_xscale, &dst_yscale);
Eric Anholt's avatar
Eric Anholt committed
1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139

    if (glamor_priv->has_source_coords) {
        glamor_get_drawable_deltas(source->pDrawable,
                                   source_pixmap, &source_x_off, &source_y_off);
        pixmap_priv_get_scale(source_pixmap_priv, &src_xscale, &src_yscale);
        if (source->transform) {
            psrc_matrix = src_matrix;
            glamor_picture_get_matrixf(source, psrc_matrix);
        }
    }

    if (glamor_priv->has_mask_coords) {
        glamor_get_drawable_deltas(mask->pDrawable, mask_pixmap,
                                   &mask_x_off, &mask_y_off);
        pixmap_priv_get_scale(mask_pixmap_priv, &mask_xscale, &mask_yscale);
        if (mask->transform) {
            pmask_matrix = mask_matrix;
            glamor_picture_get_matrixf(mask, pmask_matrix);
        }
    }

1140
    nrect_max = MIN(nrect, GLAMOR_COMPOSITE_VBO_VERT_CNT / 4);
Eric Anholt's avatar
Eric Anholt committed
1141 1142 1143 1144

    while (nrect) {
        int mrect, rect_processed;
        int vb_stride;
1145
        float *vertices;
Eric Anholt's avatar
Eric Anholt committed
1146 1147

        mrect = nrect > nrect_max ? nrect_max : nrect;
1148
        vertices = glamor_setup_composite_vbo(screen, mrect * 4);
Eric Anholt's avatar
Eric Anholt committed
1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173
        rect_processed = mrect;
        vb_stride = glamor_priv->vb_stride / sizeof(float);
        while (mrect--) {
            INT16 x_source;
            INT16 y_source;
            INT16 x_mask;
            INT16 y_mask;
            INT16 x_dest;
            INT16 y_dest;
            CARD16 width;
            CARD16 height;

            x_dest = rects->x_dst + dest_x_off;
            y_dest = rects->y_dst + dest_y_off;
            x_source = rects->x_src + source_x_off;
            y_source = rects->y_src + source_y_off;
            x_mask = rects->x_mask + mask_x_off;
            y_mask = rects->y_mask + mask_y_off;
            width = rects->width;
            height = rects->height;

            DEBUGF
                ("dest(%d,%d) source(%d %d) mask (%d %d), width %d height %d \n",
                 x_dest, y_dest, x_source, y_source, x_mask, y_mask, width,
                 height);
1174

Eric Anholt's avatar
Eric Anholt committed
1175 1176 1177
            glamor_set_normalize_vcoords_ext(dest_pixmap_priv, dst_xscale,
                                             dst_yscale, x_dest, y_dest,
                                             x_dest + width, y_dest + height,
1178
                                             vertices,
Eric Anholt's avatar
Eric Anholt committed
1179 1180 1181
                                             vb_stride);
            vertices += 2;
            if (key.source != SHADER_SOURCE_SOLID) {
1182 1183
                glamor_set_normalize_tcoords_generic(source_pixmap,
                                                     source_pixmap_priv,
Eric Anholt's avatar
Eric Anholt committed
1184 1185 1186 1187 1188 1189 1190 1191 1192 1193
                                                     source->repeatType,
                                                     psrc_matrix, src_xscale,
                                                     src_yscale, x_source,
                                                     y_source, x_source + width,
                                                     y_source + height,
                                                     vertices, vb_stride);
                vertices += 2;
            }

            if (key.mask != SHADER_MASK_NONE && key.mask != SHADER_MASK_SOLID) {
1194 1195
                glamor_set_normalize_tcoords_generic(mask_pixmap,
                                                     mask_pixmap_priv,
Eric Anholt's avatar
Eric Anholt committed
1196 1197 1198 1199 1200 1201
                                                     mask->repeatType,
                                                     pmask_matrix, mask_xscale,
                                                     mask_yscale, x_mask,
                                                     y_mask, x_mask + width,
                                                     y_mask + height,
                                                     vertices, vb_stride);
1202
                vertices += 2;
Eric Anholt's avatar
Eric Anholt committed
1203
            }
1204
            glamor_priv->render_nr_quads++;
Eric Anholt's avatar
Eric Anholt committed
1205
            rects++;
1206 1207 1208

            /* We've incremented by one of our 4 verts, now do the other 3. */
            vertices += 3 * vb_stride;
Eric Anholt's avatar
Eric Anholt committed
1209
        }
1210
        glamor_put_vbo_space(screen);
Eric Anholt's avatar
Eric Anholt committed
1211 1212
        glamor_flush_composite_rects(screen);
        nrect -= rect_processed;
1213
        if (ca_state == CA_TWO_PASS) {
1214
            glamor_composite_set_shader_blend(glamor_priv, dest_pixmap_priv,
Eric Anholt's avatar
Eric Anholt committed
1215 1216 1217
                                              &key_ca, shader_ca, &op_info_ca);
            glamor_flush_composite_rects(screen);
            if (nrect)
1218
                glamor_composite_set_shader_blend(glamor_priv, dest_pixmap_priv,
Eric Anholt's avatar
Eric Anholt committed
1219 1220 1221 1222
                                                  &key, shader, &op_info);
        }
    }

1223 1224 1225 1226
    glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
    glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
    glDisableVertexAttribArray(GLAMOR_VERTEX_MASK);
    glDisable(GL_BLEND);
Eric Anholt's avatar
Eric Anholt committed
1227 1228 1229 1230 1231 1232
    DEBUGF("finish rendering.\n");
    if (saved_source_format)
        source->format = saved_source_format;

    ret = TRUE;
    return ret;
1233 1234
}

1235
static PicturePtr
1236
glamor_convert_gradient_picture(ScreenPtr screen,
1237 1238 1239
                                PicturePtr source,
                                int x_source,
                                int y_source, int width, int height)
1240
{
Eric Anholt's avatar
Eric Anholt committed
1241 1242 1243
    PixmapPtr pixmap;
    PicturePtr dst = NULL;
    int error;
1244
    PictFormatPtr pFormat;
Eric Anholt's avatar
Eric Anholt committed
1245 1246
    PictFormatShort format;

1247 1248 1249 1250
    if (source->pDrawable) {
        pFormat = source->pFormat;
        format = pFormat->format;
    } else {
Eric Anholt's avatar
Eric Anholt committed
1251
        format = PICT_a8r8g8b8;
1252 1253 1254
        pFormat = PictureMatchFormat(screen, 32, format);
    }

1255
#ifdef GLAMOR_GRADIENT_SHADER
Eric Anholt's avatar
Eric Anholt committed
1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274
    if (!source->pDrawable) {
        if (source->pSourcePict->type == SourcePictTypeLinear) {
            dst = glamor_generate_linear_gradient_picture(screen,
                                                          source, x_source,
                                                          y_source, width,
                                                          height, format);
        }
        else if (source->pSourcePict->type == SourcePictTypeRadial) {
            dst = glamor_generate_radial_gradient_picture(screen,
                                                          source, x_source,
                                                          y_source, width,
                                                          height, format);
        }

        if (dst) {
#if 0                           /* Debug to compare it to pixman, Enable it if needed. */
            glamor_compare_pictures(screen, source,
                                    dst, x_source, y_source, width, height,
                                    0, 3);
1275
#endif
Eric Anholt's avatar
Eric Anholt committed
1276 1277 1278
            return dst;
        }
    }
1279
#endif
Eric Anholt's avatar
Eric Anholt committed
1280 1281 1282 1283 1284 1285 1286 1287 1288 1289
    pixmap = glamor_create_pixmap(screen,
                                  width,
                                  height,
                                  PIXMAN_FORMAT_DEPTH(format),
                                  GLAMOR_CREATE_PIXMAP_CPU);

    if (!pixmap)
        return NULL;

    dst = CreatePicture(0,
1290
                        &pixmap->drawable, pFormat, 0, 0, serverClient, &error);
Eric Anholt's avatar
Eric Anholt committed
1291 1292 1293 1294 1295 1296 1297 1298 1299
    glamor_destroy_pixmap(pixmap);
    if (!dst)
        return NULL;

    ValidatePicture(dst);

    fbComposite(PictOpSrc, source, NULL, dst, x_source, y_source,
                0, 0, 0, 0, width, height);
    return dst;
1300 1301
}

1302 1303
Bool
glamor_composite_clipped_region(CARD8 op,
Eric Anholt's avatar
Eric Anholt committed
1304 1305 1306
                                PicturePtr source,
                                PicturePtr mask,
                                PicturePtr dest,
1307 1308 1309
                                PixmapPtr source_pixmap,
                                PixmapPtr mask_pixmap,
                                PixmapPtr dest_pixmap,
Eric Anholt's avatar
Eric Anholt committed
1310 1311 1312 1313
                                RegionPtr region,
                                int x_source,
                                int y_source,
                                int x_mask, int y_mask, int x_dest, int y_dest)
1314
{
1315 1316 1317
    glamor_pixmap_private *source_pixmap_priv = glamor_get_pixmap_private(source_pixmap);
    glamor_pixmap_private *mask_pixmap_priv = glamor_get_pixmap_private(mask_pixmap);
    glamor_pixmap_private *dest_pixmap_priv = glamor_get_pixmap_private(dest_pixmap);
1318
    glamor_screen_private *glamor_priv = glamor_get_screen_private(dest_pixmap->drawable.pScreen);
Eric Anholt's avatar
Eric Anholt committed
1319 1320
    ScreenPtr screen = dest->pDrawable->pScreen;
    PicturePtr temp_src = source, temp_mask = mask;
1321 1322
    PixmapPtr temp_src_pixmap = source_pixmap;
    PixmapPtr temp_mask_pixmap = mask_pixmap;
Eric Anholt's avatar
Eric Anholt committed
1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335
    glamor_pixmap_private *temp_src_priv = source_pixmap_priv;
    glamor_pixmap_private *temp_mask_priv = mask_pixmap_priv;
    int x_temp_src, y_temp_src, x_temp_mask, y_temp_mask;
    BoxPtr extent;
    glamor_composite_rect_t rect[10];
    glamor_composite_rect_t *prect = rect;
    int prect_size = ARRAY_SIZE(rect);
    int ok = FALSE;
    int i;
    int width;
    int height;
    BoxPtr box;
    int nbox;
1336
    enum ca_state ca_state = CA_NONE;
Eric Anholt's avatar
Eric Anholt committed
1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361

    extent = RegionExtents(region);
    box = RegionRects(region);
    nbox = RegionNumRects(region);
    width = extent->x2 - extent->x1;
    height = extent->y2 - extent->y1;

    x_temp_src = x_source;
    y_temp_src = y_source;
    x_temp_mask = x_mask;
    y_temp_mask = y_mask;

    DEBUGF("clipped (%d %d) (%d %d) (%d %d) width %d height %d \n",
           x_source, y_source, x_mask, y_mask, x_dest, y_dest, width, height);

    /* XXX is it possible source mask have non-zero drawable.x/y? */
    if (source
        && ((!source->pDrawable
             && (source->pSourcePict->type != SourcePictTypeSolidFill))
            || (source->pDrawable
                && !GLAMOR_PIXMAP_PRIV_HAS_FBO(source_pixmap_priv)
                && (source_pixmap->drawable.width != width
                    || source_pixmap->drawable.height != height)))) {
        temp_src =
            glamor_convert_gradient_picture(screen, source,
1362 1363
                                            extent->x1 + x_source - x_dest - dest->pDrawable->x,
                                            extent->y1 + y_source - y_dest - dest->pDrawable->y,
Eric Anholt's avatar
Eric Anholt committed
1364 1365 1366 1367 1368
                                            width, height);
        if (!temp_src) {
            temp_src = source;
            goto out;
        }
1369 1370
        temp_src_pixmap = (PixmapPtr) (temp_src->pDrawable);
        temp_src_priv = glamor_get_pixmap_private(temp_src_pixmap);
1371 1372
        x_temp_src = -extent->x1 + x_dest + dest->pDrawable->x;
        y_temp_src = -extent->y1 + y_dest + dest->pDrawable->y;
Eric Anholt's avatar
Eric Anholt committed
1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385
    }

    if (mask
        &&
        ((!mask->pDrawable
          && (mask->pSourcePict->type != SourcePictTypeSolidFill))
         || (mask->pDrawable && !GLAMOR_PIXMAP_PRIV_HAS_FBO(mask_pixmap_priv)
             && (mask_pixmap->drawable.width != width
                 || mask_pixmap->drawable.height != height)))) {
        /* XXX if mask->pDrawable is the same as source->pDrawable, we have an opportunity
         * to do reduce one convertion. */
        temp_mask =
            glamor_convert_gradient_picture(screen, mask,
1386 1387
                                            extent->x1 + x_mask - x_dest - dest->pDrawable->x,
                                            extent->y1 + y_mask - y_dest - dest->pDrawable->