glamor_render.c 61 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
        "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";
150 151 152 153 154
    const char *mask_none =
        "vec4 get_mask()\n"
        "{\n"
        "	return vec4(0.0, 0.0, 0.0, 1.0);\n"
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
155
    const char *mask_solid_fetch =
156 157 158 159 160
        "uniform vec4 mask;\n"
        "vec4 get_mask()\n"
        "{\n"
        "	return mask;\n"
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
161
    const char *mask_alpha_pixmap_fetch =
162
        "varying vec2 mask_texture;\n"
Eric Anholt's avatar
Eric Anholt committed
163 164 165 166 167 168 169 170 171 172 173
        "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 =
174
        "varying vec2 mask_texture;\n"
Eric Anholt's avatar
Eric Anholt committed
175 176 177 178 179 180 181 182 183 184
        "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";
185 186 187 188 189 190 191 192 193 194 195 196 197

    const char *dest_swizzle_default =
        "vec4 dest_swizzle(vec4 color)\n"
        "{"
        "	return color;"
        "}";
    const char *dest_swizzle_alpha_to_red =
        "vec4 dest_swizzle(vec4 color)\n"
        "{"
        "	float undef;\n"
        "	return vec4(color.a, undef, undef, undef);"
        "}";

Eric Anholt's avatar
Eric Anholt committed
198
    const char *in_normal =
199 200
        "void main()\n"
        "{\n"
201
        "	gl_FragColor = dest_swizzle(get_source() * get_mask().a);\n"
202
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
203
    const char *in_ca_source =
204 205
        "void main()\n"
        "{\n"
206
        "	gl_FragColor = dest_swizzle(get_source() * get_mask());\n"
207
        "}\n";
Eric Anholt's avatar
Eric Anholt committed
208
    const char *in_ca_alpha =
209 210
        "void main()\n"
        "{\n"
211
        "	gl_FragColor = dest_swizzle(get_source().a * get_mask());\n"
212
        "}\n";
213 214 215 216 217
    const char *in_ca_dual_blend =
        "out vec4 color0;\n"
        "out vec4 color1;\n"
        "void main()\n"
        "{\n"
218 219
        "	color0 = dest_swizzle(get_source() * get_mask());\n"
        "	color1 = dest_swizzle(get_source().a * get_mask());\n"
220 221 222 223
        "}\n";
    const char *header_ca_dual_blend =
        "#version 130\n";

Eric Anholt's avatar
Eric Anholt committed
224 225 226 227
    char *source;
    const char *source_fetch;
    const char *mask_fetch = "";
    const char *in;
228 229
    const char *header;
    const char *header_norm = "";
230
    const char *dest_swizzle;
Eric Anholt's avatar
Eric Anholt committed
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:
249
        mask_fetch = mask_none;
Eric Anholt's avatar
Eric Anholt committed
250 251 252 253 254 255 256 257 258 259 260 261 262 263
        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");
    }

264 265 266 267 268 269 270 271 272 273 274 275 276 277 278
    /* If we're storing to an a8 texture but our texture format is
     * GL_RED because of a core context, then we need to make sure to
     * put the alpha into the red channel.
     */
    switch (key->dest_swizzle) {
    case SHADER_DEST_SWIZZLE_DEFAULT:
        dest_swizzle = dest_swizzle_default;
        break;
    case SHADER_DEST_SWIZZLE_ALPHA_TO_RED:
        dest_swizzle = dest_swizzle_alpha_to_red;
        break;
    default:
        FatalError("Bad composite shader dest swizzle");
    }

279
    header = header_norm;
Eric Anholt's avatar
Eric Anholt committed
280 281 282 283 284 285 286 287 288 289
    switch (key->in) {
    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;
290 291 292 293
    case SHADER_IN_CA_DUAL_BLEND:
        in = in_ca_dual_blend;
        header = header_ca_dual_blend;
        break;
Eric Anholt's avatar
Eric Anholt committed
294 295 296 297
    default:
        FatalError("Bad composite IN type");
    }

298 299 300
    XNFasprintf(&source,
                "%s"
                GLAMOR_DEFAULT_PRECISION
301 302
                "%s%s%s%s%s%s%s", header, repeat_define, relocate_texture,
                rel_sampler, source_fetch, mask_fetch, dest_swizzle, in);
Eric Anholt's avatar
Eric Anholt committed
303

304
    prog = glamor_compile_glsl_prog(GL_FRAGMENT_SHADER, source);
Eric Anholt's avatar
Eric Anholt committed
305 306 307
    free(source);

    return prog;
308 309 310
}

static GLuint
311
glamor_create_composite_vs(struct shader_key *key)
312
{
Eric Anholt's avatar
Eric Anholt committed
313 314 315 316 317 318
    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"
319 320 321
        "void main()\n"
        "{\n"
        "	gl_Position = v_position;\n";
Eric Anholt's avatar
Eric Anholt committed
322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340
    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);

341
    prog = glamor_compile_glsl_prog(GL_VERTEX_SHADER, source);
Eric Anholt's avatar
Eric Anholt committed
342 343 344
    free(source);

    return prog;
345 346 347
}

static void
348
glamor_create_composite_shader(ScreenPtr screen, struct shader_key *key,
349
                               glamor_composite_shader *shader)
350
{
Eric Anholt's avatar
Eric Anholt committed
351 352 353 354
    GLuint vs, fs, prog;
    GLint source_sampler_uniform_location, mask_sampler_uniform_location;
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);

355
    glamor_make_current(glamor_priv);
356
    vs = glamor_create_composite_vs(key);
Eric Anholt's avatar
Eric Anholt committed
357
    if (vs == 0)
358
        return;
359
    fs = glamor_create_composite_fs(key);
Eric Anholt's avatar
Eric Anholt committed
360
    if (fs == 0)
361
        return;
Eric Anholt's avatar
Eric Anholt committed
362

363 364 365
    prog = glCreateProgram();
    glAttachShader(prog, vs);
    glAttachShader(prog, fs);
Eric Anholt's avatar
Eric Anholt committed
366

367 368 369
    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
370

371 372 373 374
    if (key->in == SHADER_IN_CA_DUAL_BLEND) {
        glBindFragDataLocationIndexed(prog, 0, 0, "color0");
        glBindFragDataLocationIndexed(prog, 0, 1, "color1");
    }
375
    glamor_link_glsl_prog(screen, prog, "composite");
Eric Anholt's avatar
Eric Anholt committed
376 377 378

    shader->prog = prog;

379
    glUseProgram(prog);
Eric Anholt's avatar
Eric Anholt committed
380 381

    if (key->source == SHADER_SOURCE_SOLID) {
382
        shader->source_uniform_location = glGetUniformLocation(prog, "source");
Eric Anholt's avatar
Eric Anholt committed
383 384 385
    }
    else {
        source_sampler_uniform_location =
386 387 388
            glGetUniformLocation(prog, "source_sampler");
        glUniform1i(source_sampler_uniform_location, 0);
        shader->source_wh = glGetUniformLocation(prog, "source_wh");
Eric Anholt's avatar
Eric Anholt committed
389
        shader->source_repeat_mode =
390
            glGetUniformLocation(prog, "source_repeat_mode");
Eric Anholt's avatar
Eric Anholt committed
391 392 393 394
    }

    if (key->mask != SHADER_MASK_NONE) {
        if (key->mask == SHADER_MASK_SOLID) {
395
            shader->mask_uniform_location = glGetUniformLocation(prog, "mask");
Eric Anholt's avatar
Eric Anholt committed
396 397 398
        }
        else {
            mask_sampler_uniform_location =
399 400 401
                glGetUniformLocation(prog, "mask_sampler");
            glUniform1i(mask_sampler_uniform_location, 1);
            shader->mask_wh = glGetUniformLocation(prog, "mask_wh");
Eric Anholt's avatar
Eric Anholt committed
402
            shader->mask_repeat_mode =
403
                glGetUniformLocation(prog, "mask_repeat_mode");
Eric Anholt's avatar
Eric Anholt committed
404 405
        }
    }
406 407
}

408
static glamor_composite_shader *
Zhigang Gong's avatar
Zhigang Gong committed
409
glamor_lookup_composite_shader(ScreenPtr screen, struct
Eric Anholt's avatar
Eric Anholt committed
410 411
                               shader_key
                               *key)
412
{
Eric Anholt's avatar
Eric Anholt committed
413 414
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
    glamor_composite_shader *shader;
415

416
    shader = &glamor_priv->composite_shader[key->source][key->mask][key->in][key->dest_swizzle];
Eric Anholt's avatar
Eric Anholt committed
417 418
    if (shader->prog == 0)
        glamor_create_composite_shader(screen, key, shader);
419

Eric Anholt's avatar
Eric Anholt committed
420
    return shader;
421
}
Zhigang Gong's avatar
Zhigang Gong committed
422

423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439
static GLenum
glamor_translate_blend_alpha_to_red(GLenum blend)
{
    switch (blend) {
    case GL_SRC_ALPHA:
        return GL_SRC_COLOR;
    case GL_DST_ALPHA:
        return GL_DST_COLOR;
    case GL_ONE_MINUS_SRC_ALPHA:
        return GL_ONE_MINUS_SRC_COLOR;
    case GL_ONE_MINUS_DST_ALPHA:
        return GL_ONE_MINUS_DST_COLOR;
    default:
        return blend;
    }
}

440 441
static Bool
glamor_set_composite_op(ScreenPtr screen,
Eric Anholt's avatar
Eric Anholt committed
442
                        CARD8 op, struct blendinfo *op_info_result,
443
                        PicturePtr dest, PicturePtr mask,
444 445
                        enum ca_state ca_state,
                        struct shader_key *key)
446
{
Eric Anholt's avatar
Eric Anholt committed
447 448 449 450 451 452 453
    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;
    }
454

Eric Anholt's avatar
Eric Anholt committed
455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470
    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. */
471 472 473 474 475 476 477 478 479 480 481 482 483
    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
484
            dest_blend = GL_SRC_COLOR;
485 486
            break;
        case GL_ONE_MINUS_SRC_ALPHA:
Eric Anholt's avatar
Eric Anholt committed
487
            dest_blend = GL_ONE_MINUS_SRC_COLOR;
488 489
            break;
        }
Eric Anholt's avatar
Eric Anholt committed
490 491
    }

492 493 494 495 496 497 498 499
    /* If we're outputting our alpha to the red channel, then any
     * reads of alpha for blending need to come from the red channel.
     */
    if (key->dest_swizzle == SHADER_DEST_SWIZZLE_ALPHA_TO_RED) {
        source_blend = glamor_translate_blend_alpha_to_red(source_blend);
        dest_blend = glamor_translate_blend_alpha_to_red(dest_blend);
    }

Eric Anholt's avatar
Eric Anholt committed
500 501 502 503 504 505
    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;
506 507 508
}

static void
509
glamor_set_composite_texture(glamor_screen_private *glamor_priv, int unit,
Eric Anholt's avatar
Eric Anholt committed
510
                             PicturePtr picture,
511
                             PixmapPtr pixmap,
Eric Anholt's avatar
Eric Anholt committed
512
                             GLuint wh_location, GLuint repeat_location)
513
{
514
    glamor_pixmap_private *pixmap_priv = glamor_get_pixmap_private(pixmap);
Eric Anholt's avatar
Eric Anholt committed
515 516 517
    float wh[4];
    int repeat_type;

518
    glamor_make_current(glamor_priv);
519
    glActiveTexture(GL_TEXTURE0 + unit);
520
    glBindTexture(GL_TEXTURE_2D, pixmap_priv->fbo->tex);
Eric Anholt's avatar
Eric Anholt committed
521 522 523
    repeat_type = picture->repeatType;
    switch (picture->repeatType) {
    case RepeatNone:
524 525 526 527 528 529 530 531 532 533
        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
534 535
        break;
    case RepeatNormal:
536 537
        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
538 539
        break;
    case RepeatPad:
540 541
        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
542 543
        break;
    case RepeatReflect:
544 545
        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
546 547 548 549 550 551 552
        break;
    }

    switch (picture->filter) {
    default:
    case PictFilterFast:
    case PictFilterNearest:
553 554
        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
555 556 557 558
        break;
    case PictFilterGood:
    case PictFilterBest:
    case PictFilterBilinear:
559 560
        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
561 562
        break;
    }
563

Eric Anholt's avatar
Eric Anholt committed
564 565 566 567 568 569 570
    /*
     *  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
571
             || glamor_pixmap_priv_is_large(pixmap_priv)) {
572
        if (picture->transform)
Eric Anholt's avatar
Eric Anholt committed
573 574 575
            repeat_type += RepeatFix;
    }
    if (repeat_type >= RepeatFix) {
576
        glamor_pixmap_fbo_fix_wh_ratio(wh, pixmap, pixmap_priv);
Eric Anholt's avatar
Eric Anholt committed
577 578 579
        if ((wh[0] != 1.0 || wh[1] != 1.0)
            || (glamor_priv->gl_flavor == GLAMOR_GL_ES2
                && repeat_type == RepeatFix))
580
            glUniform4fv(wh_location, 1, wh);
Eric Anholt's avatar
Eric Anholt committed
581 582 583
        else
            repeat_type -= RepeatFix;
    }
584
    glUniform1i(repeat_location, repeat_type);
585 586 587
}

static void
588
glamor_set_composite_solid(float *color, GLint uniform_location)
589
{
590
    glUniform4fv(uniform_location, 1, color);
591 592
}

593 594 595
static char
glamor_get_picture_location(PicturePtr picture)
{
Eric Anholt's avatar
Eric Anholt committed
596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611
    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);
612 613
}

614
static void *
615
glamor_setup_composite_vbo(ScreenPtr screen, int n_verts)
616
{
Eric Anholt's avatar
Eric Anholt committed
617 618
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
    int vert_size;
619 620
    char *vbo_offset;
    float *vb;
Eric Anholt's avatar
Eric Anholt committed
621

622
    glamor_priv->render_nr_quads = 0;
Eric Anholt's avatar
Eric Anholt committed
623 624 625 626 627 628 629 630
    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;

631
    glamor_make_current(glamor_priv);
632
    vb = glamor_get_vbo_space(screen, vert_size, &vbo_offset);
Eric Anholt's avatar
Eric Anholt committed
633

634
    glVertexAttribPointer(GLAMOR_VERTEX_POS, 2, GL_FLOAT, GL_FALSE,
635
                          glamor_priv->vb_stride, vbo_offset);
636
    glEnableVertexAttribArray(GLAMOR_VERTEX_POS);
Eric Anholt's avatar
Eric Anholt committed
637 638

    if (glamor_priv->has_source_coords) {
639 640 641
        glVertexAttribPointer(GLAMOR_VERTEX_SOURCE, 2,
                              GL_FLOAT, GL_FALSE,
                              glamor_priv->vb_stride,
642
                              vbo_offset + 2 * sizeof(float));
643
        glEnableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
Eric Anholt's avatar
Eric Anholt committed
644 645 646
    }

    if (glamor_priv->has_mask_coords) {
647 648
        glVertexAttribPointer(GLAMOR_VERTEX_MASK, 2, GL_FLOAT, GL_FALSE,
                              glamor_priv->vb_stride,
649 650
                              vbo_offset + (glamor_priv->has_source_coords ?
                                            4 : 2) * sizeof(float));
651
        glEnableVertexAttribArray(GLAMOR_VERTEX_MASK);
Eric Anholt's avatar
Eric Anholt committed
652
    }
653

654
    return vb;
655 656 657 658 659
}

static void
glamor_flush_composite_rects(ScreenPtr screen)
{
Eric Anholt's avatar
Eric Anholt committed
660
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
Chris Wilson's avatar
Chris Wilson committed
661

662
    glamor_make_current(glamor_priv);
663

664
    if (!glamor_priv->render_nr_quads)
Eric Anholt's avatar
Eric Anholt committed
665
        return;
He Junyan's avatar
He Junyan committed
666

667
    glamor_glDrawArrays_GL_QUADS(glamor_priv, glamor_priv->render_nr_quads);
668 669
}

670
static const int pict_format_combine_tab[][3] = {
Eric Anholt's avatar
Eric Anholt committed
671 672
    {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
673
};
674

Zhigang Gong's avatar
Zhigang Gong committed
675 676
static Bool
combine_pict_format(PictFormatShort * des, const PictFormatShort src,
Eric Anholt's avatar
Eric Anholt committed
677
                    const PictFormatShort mask, enum shader_in in_ca)
678
{
Eric Anholt's avatar
Eric Anholt committed
679
    PictFormatShort new_vis;
680
    int src_type, mask_type, src_bpp;
Eric Anholt's avatar
Eric Anholt committed
681 682 683 684 685 686 687 688
    int i;

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

689
    assert(src_bpp == PICT_FORMAT_BPP(mask));
Eric Anholt's avatar
Eric Anholt committed
690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705

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

    switch (in_ca) {
    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;
706 707 708 709
    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
710 711 712 713 714 715 716 717 718
    default:
        return FALSE;
    }

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

719
    for (i = 0; i < ARRAY_SIZE(pict_format_combine_tab); i++) {
Eric Anholt's avatar
Eric Anholt committed
720 721 722 723 724 725 726 727 728 729
        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;
730 731
}

732
static void
733 734
glamor_set_normalize_tcoords_generic(PixmapPtr pixmap,
                                     glamor_pixmap_private *priv,
Eric Anholt's avatar
Eric Anholt committed
735 736 737 738
                                     int repeat_type,
                                     float *matrix,
                                     float xscale, float yscale,
                                     int x1, int y1, int x2, int y2,
739
                                     float *texcoords,
Eric Anholt's avatar
Eric Anholt committed
740
                                     int stride)
741
{
Eric Anholt's avatar
Eric Anholt committed
742 743 744
    if (!matrix && repeat_type == RepeatNone)
        glamor_set_normalize_tcoords_ext(priv, xscale, yscale,
                                         x1, y1,
745
                                         x2, y2, texcoords, stride);
Eric Anholt's avatar
Eric Anholt committed
746 747 748 749 750 751
    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)
752
        glamor_set_repeat_normalize_tcoords_ext(pixmap, priv, repeat_type,
Eric Anholt's avatar
Eric Anholt committed
753 754 755
                                                xscale, yscale,
                                                x1, y1,
                                                x2, y2,
756
                                                texcoords, stride);
Eric Anholt's avatar
Eric Anholt committed
757
    else if (matrix && repeat_type != RepeatNone)
758
        glamor_set_repeat_transformed_normalize_tcoords_ext(pixmap, priv, repeat_type,
Eric Anholt's avatar
Eric Anholt committed
759 760
                                                            matrix, xscale,
                                                            yscale, x1, y1, x2,
761
                                                            y2,
Eric Anholt's avatar
Eric Anholt committed
762
                                                            texcoords, stride);
763 764
}

765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787
/**
 * 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;
    }
}

788
static Bool
Eric Anholt's avatar
Eric Anholt committed
789 790 791 792
glamor_composite_choose_shader(CARD8 op,
                               PicturePtr source,
                               PicturePtr mask,
                               PicturePtr dest,
793 794 795
                               PixmapPtr source_pixmap,
                               PixmapPtr mask_pixmap,
                               PixmapPtr dest_pixmap,
796 797 798
                               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
799 800 801
                               struct shader_key *s_key,
                               glamor_composite_shader ** shader,
                               struct blendinfo *op_info,
802 803
                               PictFormatShort *psaved_source_format,
                               enum ca_state ca_state)
804
{
Eric Anholt's avatar
Eric Anholt committed
805
    ScreenPtr screen = dest->pDrawable->pScreen;
806
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
Eric Anholt's avatar
Eric Anholt committed
807 808 809 810 811 812 813 814 815 816 817 818 819
    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;
    }

820 821 822 823 824
    if (!glamor_render_format_is_supported(dest->format)) {
        glamor_fallback("Unsupported dest picture format.\n");
        goto fail;
    }

Eric Anholt's avatar
Eric Anholt committed
825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845
    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 {
846 847 848 849
        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
850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874
    }

    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;
875 876
            else if (glamor_priv->has_dual_blend)
                key.in = SHADER_IN_CA_DUAL_BLEND;
Eric Anholt's avatar
Eric Anholt committed
877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893
            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;
    }

894 895 896 897 898 899 900
    if (dest_pixmap->drawable.bitsPerPixel <= 8 &&
        glamor_priv->one_channel_format == GL_RED) {
        key.dest_swizzle = SHADER_DEST_SWIZZLE_ALPHA_TO_RED;
    } else {
        key.dest_swizzle = SHADER_DEST_SWIZZLE_DEFAULT;
    }

Eric Anholt's avatar
Eric Anholt committed
901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916
    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");
        }
917
        if (source_pixmap_priv->gl_fbo == GLAMOR_FBO_UNATTACHED) {
918
#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
Eric Anholt's avatar
Eric Anholt committed
919
            source_status = GLAMOR_UPLOAD_PENDING;
920
#else
Eric Anholt's avatar
Eric Anholt committed
921 922
            glamor_fallback("no texture in source\n");
            goto fail;
923
#endif
Eric Anholt's avatar
Eric Anholt committed
924 925 926 927 928 929 930 931 932
        }
    }

    if (key.mask == SHADER_MASK_TEXTURE ||
        key.mask == SHADER_MASK_TEXTURE_ALPHA) {
        if (mask_pixmap == dest_pixmap) {
            glamor_fallback("mask == dest\n");
            goto fail;
        }
933
        if (mask_pixmap_priv->gl_fbo == GLAMOR_FBO_UNATTACHED) {
934
#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
Eric Anholt's avatar
Eric Anholt committed
935
            mask_status = GLAMOR_UPLOAD_PENDING;
936
#else
Eric Anholt's avatar
Eric Anholt committed
937 938
            glamor_fallback("no texture in mask\n");
            goto fail;
939
#endif
Eric Anholt's avatar
Eric Anholt committed
940 941
        }
    }
942

943
#ifdef GLAMOR_PIXMAP_DYNAMIC_UPLOAD
Eric Anholt's avatar
Eric Anholt committed
944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997
    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;
            }
998 999 1000 1001 1002
        } 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
1003 1004 1005 1006 1007 1008 1009 1010
        }

        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;
            }
1011 1012 1013 1014 1015
        } 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
1016 1017
        }
    }
1018
#endif
1019

1020 1021 1022 1023 1024 1025 1026 1027 1028 1029
    /* 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;
    }

1030 1031
    if (!glamor_set_composite_op(screen, op, op_info, dest, mask, ca_state,
                                 &key)) {
Eric Anholt's avatar
Eric Anholt committed
1032
        goto fail;
1033
    }
Eric Anholt's avatar
Eric Anholt committed
1034 1035 1036

    *shader = glamor_lookup_composite_shader(screen, &key);
    if ((*shader)->prog == 0) {
1037
        glamor_fallback("no shader program for this render acccel mode\n");
Eric Anholt's avatar
Eric Anholt committed
1038 1039 1040 1041 1042 1043 1044
        goto fail;
    }

    if (key.source == SHADER_SOURCE_SOLID)
        memcpy(&(*shader)->source_solid_color[0],
               source_solid_color, 4 * sizeof(float));
    else {
1045
        (*shader)->source_pixmap = source_pixmap;
Eric Anholt's avatar
Eric Anholt committed
1046 1047 1048 1049 1050 1051 1052
        (*shader)->source = source;
    }

    if (key.mask == SHADER_MASK_SOLID)
        memcpy(&(*shader)->mask_solid_color[0],
               mask_solid_color, 4 * sizeof(float));
    else {
1053
        (*shader)->mask_pixmap = mask_pixmap;
Eric Anholt's avatar
Eric Anholt committed
1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066
        (*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;
1067 1068
}

1069 1070 1071
static void
glamor_composite_set_shader_blend(glamor_screen_private *glamor_priv,
                                  glamor_pixmap_private *dest_priv,
Eric Anholt's avatar
Eric Anholt committed
1072
                                  struct shader_key *key,
1073
                                  glamor_composite_shader *shader,
Eric Anholt's avatar
Eric Anholt committed
1074
                                  struct blendinfo *op_info)
1075
{
1076
    glamor_make_current(glamor_priv);
1077
    glUseProgram(shader->prog);
Eric Anholt's avatar
Eric Anholt committed
1078 1079

    if (key->source == SHADER_SOURCE_SOLID) {
1080
        glamor_set_composite_solid(shader->source_solid_color,
Eric Anholt's avatar
Eric Anholt committed
1081 1082 1083 1084 1085
                                   shader->source_uniform_location);
    }
    else {
        glamor_set_composite_texture(glamor_priv, 0,
                                     shader->source,
1086
                                     shader->source_pixmap, shader->source_wh,
Eric Anholt's avatar
Eric Anholt committed
1087 1088 1089 1090 1091
                                     shader->source_repeat_mode);
    }

    if (key->mask != SHADER_MASK_NONE) {
        if (key->mask == SHADER_MASK_SOLID) {
1092
            glamor_set_composite_solid(shader->mask_solid_color,
Eric Anholt's avatar
Eric Anholt committed
1093 1094 1095 1096 1097
                                       shader->mask_uniform_location);
        }
        else {
            glamor_set_composite_texture(glamor_priv, 1,
                                         shader->mask,
1098
                                         shader->mask_pixmap, shader->mask_wh,
Eric Anholt's avatar
Eric Anholt committed
1099 1100 1101 1102 1103
                                         shader->mask_repeat_mode);
        }
    }

    if (op_info->source_blend == GL_ONE && op_info->dest_blend == GL_ZERO) {
1104
        glDisable(GL_BLEND);
Eric Anholt's avatar
Eric Anholt committed
1105 1106
    }
    else {
1107 1108
        glEnable(GL_BLEND);
        glBlendFunc(op_info->source_blend, op_info->dest_blend);
Eric Anholt's avatar
Eric Anholt committed
1109
    }
1110 1111 1112 1113
}

static Bool
glamor_composite_with_shader(CARD8 op,
Eric Anholt's avatar
Eric Anholt committed
1114 1115 1116
                             PicturePtr source,
                             PicturePtr mask,
                             PicturePtr dest,
1117 1118 1119
                             PixmapPtr source_pixmap,
                             PixmapPtr mask_pixmap,
                             PixmapPtr dest_pixmap,
1120 1121 1122 1123
                             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,
1124
                             enum ca_state ca_state)
1125
{
Eric Anholt's avatar
Eric Anholt committed
1126
    ScreenPtr screen = dest->pDrawable->pScreen;
1127
    glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
Eric Anholt's avatar
Eric Anholt committed
1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142
    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,
1143
                                        source_pixmap, mask_pixmap, dest_pixmap,
Eric Anholt's avatar
Eric Anholt committed
1144 1145 1146
                                        source_pixmap_priv, mask_pixmap_priv,
                                        dest_pixmap_priv,
                                        &key, &shader, &op_info,
1147
                                        &saved_source_format, ca_state)) {
Eric Anholt's avatar
Eric Anholt committed
1148 1149 1150
        glamor_fallback("glamor_composite_choose_shader failed\n");
        return ret;
    }
1151
    if (ca_state == CA_TWO_PASS) {
Eric Anholt's avatar
Eric Anholt committed
1152
        if (!glamor_composite_choose_shader(PictOpAdd, source, mask, dest,
1153
                                            source_pixmap, mask_pixmap, dest_pixmap,
Eric Anholt's avatar
Eric Anholt committed
1154 1155 1156
                                            source_pixmap_priv,
                                            mask_pixmap_priv, dest_pixmap_priv,
                                            &key_ca, &shader_ca, &op_info_ca,
1157
                                            &saved_source_format, ca_state)) {
Eric Anholt's avatar
Eric Anholt committed
1158 1159 1160 1161 1162
            glamor_fallback("glamor_composite_choose_shader failed\n");
            return ret;
        }
    }

1163 1164
    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);
1165
    glamor_set_alu(screen, GXcopy);
Eric Anholt's avatar
Eric Anholt committed
1166

1167
    glamor_make_current(glamor_priv);
Eric Anholt's avatar
Eric Anholt committed
1168 1169 1170 1171 1172 1173 1174 1175 1176

    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);
1177
    pixmap_priv_get_dest_scale(dest_pixmap, dest_pixmap_priv, &dst_xscale, &dst_yscale);
Eric Anholt's avatar
Eric Anholt committed
1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198

    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);
        }
    }

1199
    nrect_max = MIN(nrect, GLAMOR_COMPOSITE_VBO_VERT_CNT / 4);
Eric Anholt's avatar
Eric Anholt committed
1200 1201 1202 1203

    while (nrect) {
        int mrect, rect_processed;
        int vb_stride;
1204
        float *vertices;
Eric Anholt's avatar
Eric Anholt committed
1205 1206

        mrect = nrect > nrect_max ? nrect_max : nrect;
1207
        vertices = glamor_setup_composite_vbo(screen, mrect * 4);
Eric Anholt's avatar
Eric Anholt committed
1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232
        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);
1233

Eric Anholt's avatar
Eric Anholt committed
1234 1235 1236
            glamor_set_normalize_vcoords_ext(dest_pixmap_priv, dst_xscale,
                                             dst_yscale, x_dest, y_dest,
                                             x_dest + width, y_dest + height,
1237
                                             vertices,
Eric Anholt's avatar
Eric Anholt committed
1238 1239 1240
                                             vb_stride);
            vertices += 2;
            if (key.source != SHADER_SOURCE_SOLID) {
1241 1242
                glamor_set_normalize_tcoords_generic(source_pixmap,
                                                     source_pixmap_priv,
Eric Anholt's avatar
Eric Anholt committed
1243 1244 1245 1246 1247 1248 1249 1250 1251 1252
                                                     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) {
1253 1254
                glamor_set_normalize_tcoords_generic(mask_pixmap,
                                                     mask_pixmap_priv,
Eric Anholt's avatar
Eric Anholt committed
1255 1256 1257 1258 1259 1260
                                                     mask->repeatType,
                                                     pmask_matrix, mask_xscale,
                                                     mask_yscale, x_mask,
                                                     y_mask, x_mask + width,
                                                     y_mask + height,
                                                     vertices, vb_stride);
1261
                vertices += 2;
Eric Anholt's avatar
Eric Anholt committed
1262
            }
1263
            glamor_priv->render_nr_quads++;
Eric Anholt's avatar
Eric Anholt committed
1264
            rects++;
1265 1266 1267

            /* 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
1268
        }
1269
        glamor_put_vbo_space(screen);
Eric Anholt's avatar
Eric Anholt committed
1270 1271
        glamor_flush_composite_rects(screen);
        nrect -= rect_processed;
1272
        if (ca_state == CA_TWO_PASS) {
1273
            glamor_composite_set_shader_blend(glamor_priv, dest_pixmap_priv,
Eric Anholt's avatar
Eric Anholt committed
1274 1275 1276
                                              &key_ca, shader_ca, &op_info_ca);
            glamor_flush_composite_rects(screen);
            if (nrect)
1277
                glamor_composite_set_shader_blend(glamor_priv, dest_pixmap_priv,
Eric Anholt's avatar
Eric Anholt committed
1278 1279 1280 1281
                                                  &key, shader, &op_info);
        }
    }

1282 1283 1284 1285
    glDisableVertexAttribArray(GLAMOR_VERTEX_POS);
    glDisableVertexAttribArray(GLAMOR_VERTEX_SOURCE);
    glDisableVertexAttribArray(GLAMOR_VERTEX_MASK);
    glDisable(GL_BLEND);
Eric Anholt's avatar
Eric Anholt committed
1286 1287 1288 1289 1290 1291
    DEBUGF("finish rendering.\n");
    if (saved_source_format)
        source->format = saved_source_format;

    ret = TRUE;
    return ret;
1292 1293
}

1294
static PicturePtr
1295
glamor_convert_gradient_picture(ScreenPtr screen,
1296 1297 1298
                                PicturePtr source,
                                int x_source,
                                int y_source, int width, int height)
1299
{
Eric Anholt's avatar
Eric Anholt committed
1300 1301 1302
    PixmapPtr pixmap;
    PicturePtr dst = NULL;
    int error;
1303
    PictFormatPtr pFormat;
Eric Anholt's avatar
Eric Anholt committed
1304 1305
    PictFormatShort format;

1306 1307 1308 1309
    if (source->pDrawable) {
        pFormat = source->pFormat;
        format = pFormat->format;
    } else {
Eric Anholt's avatar
Eric Anholt committed
1310
        format = PICT_a8r8g8b8;
1311 1312 1313
        pFormat = PictureMatchFormat(screen, 32, format);
    }

1314
#ifdef GLAMOR_GRADIENT_SHADER
Eric Anholt's avatar
Eric Anholt committed
1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333
    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);
1334
#endif
Eric Anholt's avatar
Eric Anholt committed
1335 1336 1337
            return dst;
        }
    }
1338
#endif
Eric Anholt's avatar
Eric Anholt committed
1339 1340 1341 1342 1343 1344 1345 1346 1347 1348
    pixmap = glamor_create_pixmap(screen,
                                  width,
                                  height,
                                  PIXMAN_FORMAT_DEPTH(format),
                                  GLAMOR_CREATE_PIXMAP_CPU);

    if (!pixmap)
        return NULL;

    dst = CreatePicture(0,
1349
                        &pixmap->drawable, pFormat, 0, 0, serverClient, &error);
Eric Anholt's avatar
Eric Anholt committed
1350 1351 1352 1353 1354 1355 1356 1357 1358
    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;
1359 1360
}

1361 1362
Bool
glamor_composite_clipped_region(CARD8 op,
Eric Anholt's avatar
Eric Anholt committed
1363 1364 1365
                                PicturePtr source,
                                PicturePtr mask,
                                PicturePtr dest,