Commit c6499a74 authored by Brian's avatar Brian

Determine GL extensions/limits by making pipe queries.

The state tracker calls pipe->get_param() to determine the GL limits and
which OpenGL extensions are supported.
This is an initial implementation that'll probably change...
parent 01e71655
......@@ -86,7 +86,7 @@ static const struct {
{ OFF, "GL_EXT_blend_logic_op", F(EXT_blend_logic_op) },
{ OFF, "GL_EXT_blend_minmax", F(EXT_blend_minmax) },
{ OFF, "GL_EXT_blend_subtract", F(EXT_blend_subtract) },
{ ON, "GL_EXT_clip_volume_hint", F(EXT_clip_volume_hint) },
{ OFF, "GL_EXT_clip_volume_hint", F(EXT_clip_volume_hint) },
{ OFF, "GL_EXT_cull_vertex", F(EXT_cull_vertex) },
{ ON, "GL_EXT_compiled_vertex_array", F(EXT_compiled_vertex_array) },
{ OFF, "GL_EXT_convolution", F(EXT_convolution) },
......
......@@ -142,6 +142,26 @@ static int
i915_get_param(struct pipe_context *pipe, int param)
{
switch (param) {
case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
return 8;
case PIPE_CAP_NPOT_TEXTURES:
return 1;
case PIPE_CAP_TWO_SIDED_STENCIL:
return 1;
case PIPE_CAP_GLSL:
return 0;
case PIPE_CAP_S3TC:
return 0;
case PIPE_CAP_ANISOTROPIC_FILTER:
return 0;
case PIPE_CAP_POINT_SPRITE:
return 0;
case PIPE_CAP_MAX_RENDER_TARGETS:
return 1;
case PIPE_CAP_OCCLUSION_QUERY:
return 0;
case PIPE_CAP_TEXTURE_SHADOW_MAP:
return 0;
default:
return 0;
}
......
......@@ -225,4 +225,21 @@
#define PIPE_SPRITE_COORD_UPPER_LEFT 1
#define PIPE_SPRITE_COORD_LOWER_LEFT 2
/**
* Implementation capabilities/limits
* Passed to pipe->get_param()
* XXX this will need some fine tuning...
*/
#define PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS 1
#define PIPE_CAP_NPOT_TEXTURES 2
#define PIPE_CAP_TWO_SIDED_STENCIL 3
#define PIPE_CAP_GLSL 4 /* XXX need something better */
#define PIPE_CAP_S3TC 5
#define PIPE_CAP_ANISOTROPIC_FILTER 6
#define PIPE_CAP_POINT_SPRITE 7
#define PIPE_CAP_MAX_RENDER_TARGETS 8
#define PIPE_CAP_OCCLUSION_QUERY 9
#define PIPE_CAP_TEXTURE_SHADOW_MAP 10
#endif
......@@ -277,6 +277,26 @@ static const char *softpipe_get_vendor( struct pipe_context *pipe )
static int softpipe_get_param(struct pipe_context *pipe, int param)
{
switch (param) {
case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
return 8;
case PIPE_CAP_NPOT_TEXTURES:
return 1;
case PIPE_CAP_TWO_SIDED_STENCIL:
return 1;
case PIPE_CAP_GLSL:
return 1;
case PIPE_CAP_S3TC:
return 0;
case PIPE_CAP_ANISOTROPIC_FILTER:
return 0;
case PIPE_CAP_POINT_SPRITE:
return 1;
case PIPE_CAP_MAX_RENDER_TARGETS:
return 1;
case PIPE_CAP_OCCLUSION_QUERY:
return 1;
case PIPE_CAP_TEXTURE_SHADOW_MAP:
return 1;
default:
return 0;
}
......
......@@ -231,6 +231,7 @@ STATETRACKER_SOURCES = \
state_tracker/st_context.c \
state_tracker/st_debug.c \
state_tracker/st_draw.c \
state_tracker/st_extensions.c \
state_tracker/st_format.c \
state_tracker/st_framebuffer.c \
state_tracker/st_mesa_to_tgsi.c \
......
/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
......@@ -45,6 +45,7 @@
#include "st_cb_strings.h"
#include "st_atom.h"
#include "st_draw.h"
#include "st_extensions.h"
#include "st_program.h"
#include "pipe/p_context.h"
#include "pipe/draw/draw_context.h"
......@@ -105,8 +106,9 @@ st_create_context_priv( GLcontext *ctx, struct pipe_context *pipe )
st->pixel_xfer.cache = _mesa_new_program_cache();
/* XXXX This is temporary! */
_mesa_enable_sw_extensions(ctx);
/* GL limits and extensions */
st_init_limits(st);
st_init_extensions(st);
return st;
}
......
/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
#include "main/imports.h"
#include "main/context.h"
#include "main/extensions.h"
#include "main/macros.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "st_context.h"
#include "st_extensions.h"
/*
* Compute floor(log_base_2(n)).
* If n < 0 return -1.
*/
static int
logbase2( int n )
{
GLint i = 1;
GLint log2 = 0;
if (n < 0)
return -1;
if (n == 0)
return 0;
while ( n > i ) {
i *= 2;
log2++;
}
if (i != n) {
return log2 - 1;
}
else {
return log2;
}
}
void st_init_limits(struct st_context *st)
{
struct pipe_context *pipe = st->pipe;
GLcontext *ctx = st->ctx;
uint w, h, d;
ctx->Const.MaxTextureImageUnits
= ctx->Const.MaxTextureCoordUnits
= pipe->get_param(pipe, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS);
pipe->max_texture_size(pipe, PIPE_TEXTURE_2D, &w, &h, &d);
ctx->Const.MaxTextureLevels = logbase2(w) + 1;
ctx->Const.MaxTextureRectSize = w;
pipe->max_texture_size(pipe, PIPE_TEXTURE_3D, &w, &h, &d);
ctx->Const.Max3DTextureLevels = logbase2(d) + 1;
pipe->max_texture_size(pipe, PIPE_TEXTURE_CUBE, &w, &h, &d);
ctx->Const.MaxCubeTextureLevels = logbase2(w) + 1;
ctx->Const.MaxDrawBuffers = MAX2(1, pipe->get_param(pipe, PIPE_CAP_MAX_RENDER_TARGETS));
}
/**
* XXX this needs careful review
*/
void st_init_extensions(struct st_context *st)
{
struct pipe_context *pipe = st->pipe;
GLcontext *ctx = st->ctx;
/*
* Extensions that are supported by all Gallium drivers:
*/
ctx->Extensions.ARB_fragment_program = GL_TRUE;
ctx->Extensions.ARB_texture_cube_map = GL_TRUE;
ctx->Extensions.ARB_texture_env_combine = GL_TRUE;
ctx->Extensions.ARB_texture_env_crossbar = GL_TRUE;
ctx->Extensions.ARB_texture_env_dot3 = GL_TRUE;
ctx->Extensions.ARB_vertex_program = GL_TRUE;
ctx->Extensions.ARB_vertex_buffer_object = GL_TRUE;
ctx->Extensions.EXT_blend_color = GL_TRUE;
ctx->Extensions.EXT_blend_equation_separate = GL_TRUE;
ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
ctx->Extensions.EXT_blend_logic_op = GL_TRUE;
ctx->Extensions.EXT_blend_minmax = GL_TRUE;
ctx->Extensions.EXT_blend_subtract = GL_TRUE;
ctx->Extensions.EXT_framebuffer_object = GL_TRUE;
ctx->Extensions.EXT_fog_coord = GL_TRUE;
ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;
ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
ctx->Extensions.EXT_point_parameters = GL_TRUE;
ctx->Extensions.EXT_secondary_color = GL_TRUE;
ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
ctx->Extensions.EXT_texture_env_add = GL_TRUE;
ctx->Extensions.EXT_texture_env_combine = GL_TRUE;
ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
ctx->Extensions.NV_blend_square = GL_TRUE;
ctx->Extensions.NV_texgen_reflection = GL_TRUE;
/*
* Extensions that depend on the driver/hardware:
*/
if (pipe->get_param(pipe, PIPE_CAP_MAX_RENDER_TARGETS) > 1) {
ctx->Extensions.ARB_draw_buffers = GL_TRUE;
}
if (pipe->get_param(pipe, PIPE_CAP_GLSL) > 1) {
ctx->Extensions.ARB_fragment_shader = GL_TRUE;
ctx->Extensions.ARB_vertex_shader = GL_TRUE;
ctx->Extensions.ARB_shader_objects = GL_TRUE;
ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
ctx->Extensions.ARB_shading_language_120 = GL_TRUE;
}
if (pipe->get_param(pipe, PIPE_CAP_NPOT_TEXTURES)) {
ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
ctx->Extensions.NV_texture_rectangle = GL_TRUE;
}
if (pipe->get_param(pipe, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) {
ctx->Extensions.ARB_multitexture = GL_TRUE;
}
if (pipe->get_param(pipe, PIPE_CAP_TWO_SIDED_STENCIL) > 1) {
ctx->Extensions.ATI_separate_stencil = GL_TRUE;
}
if (pipe->get_param(pipe, PIPE_CAP_S3TC) > 1) {
ctx->Extensions.ARB_texture_compression = GL_TRUE;
ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;
}
if (pipe->get_param(pipe, PIPE_CAP_ANISOTROPIC_FILTER)) {
ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE;
}
if (pipe->get_param(pipe, PIPE_CAP_POINT_SPRITE)) {
ctx->Extensions.ARB_point_sprite = GL_TRUE;
}
if (pipe->get_param(pipe, PIPE_CAP_OCCLUSION_QUERY) > 1) {
ctx->Extensions.ARB_occlusion_query = GL_TRUE;
}
if (pipe->get_param(pipe, PIPE_CAP_TEXTURE_SHADOW_MAP) > 1) {
ctx->Extensions.ARB_depth_texture = GL_TRUE;
ctx->Extensions.ARB_shadow = GL_TRUE;
/*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/
}
}
/**************************************************************************
*
* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
#ifndef ST_EXTENSIONS_H
#define ST_EXTENSIONS_H
extern void st_init_limits(struct st_context *st);
extern void st_init_extensions(struct st_context *st);
#endif /* ST_EXTENSIONS_H */
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