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-rw-r--r--src/mesa/state_tracker/st_extensions.c263
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diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c
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+/**************************************************************************
+ *
+ * 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 "pipe/p_screen.h"
+
+#include "st_context.h"
+#include "st_extensions.h"
+
+
+static int _min(int a, int b)
+{
+ return (a < b) ? a : b;
+}
+
+static float _maxf(float a, float b)
+{
+ return (a > b) ? a : b;
+}
+
+static int _clamp(int a, int min, int max)
+{
+ if (a < min)
+ return min;
+ else if (a > max)
+ return max;
+ else
+ return a;
+}
+
+
+/**
+ * Query driver to get implementation limits.
+ * Note that we have to limit/clamp against Mesa's internal limits too.
+ */
+void st_init_limits(struct st_context *st)
+{
+ struct pipe_screen *screen = st->pipe->screen;
+ struct gl_constants *c = &st->ctx->Const;
+
+ c->MaxTextureLevels
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS),
+ MAX_TEXTURE_LEVELS);
+
+ c->Max3DTextureLevels
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_3D_LEVELS),
+ MAX_3D_TEXTURE_LEVELS);
+
+ c->MaxCubeTextureLevels
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS),
+ MAX_CUBE_TEXTURE_LEVELS);
+
+ c->MaxTextureRectSize
+ = _min(1 << (c->MaxTextureLevels - 1), MAX_TEXTURE_RECT_SIZE);
+
+ c->MaxTextureUnits
+ = c->MaxTextureImageUnits
+ = c->MaxTextureCoordUnits
+ = _min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS),
+ MAX_TEXTURE_IMAGE_UNITS);
+
+ c->MaxDrawBuffers
+ = _clamp(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
+ 1, MAX_DRAW_BUFFERS);
+
+ c->MaxLineWidth
+ = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH));
+ c->MaxLineWidthAA
+ = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_LINE_WIDTH_AA));
+
+ c->MaxPointSize
+ = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH));
+ c->MaxPointSizeAA
+ = _maxf(1.0f, screen->get_paramf(screen, PIPE_CAP_MAX_POINT_WIDTH_AA));
+
+ c->MaxTextureMaxAnisotropy
+ = _maxf(2.0f, screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_ANISOTROPY));
+
+ c->MaxTextureLodBias
+ = screen->get_paramf(screen, PIPE_CAP_MAX_TEXTURE_LOD_BIAS);
+
+ c->MaxDrawBuffers
+ = CLAMP(screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS),
+ 1, MAX_DRAW_BUFFERS);
+}
+
+
+/**
+ * XXX this needs careful review
+ */
+void st_init_extensions(struct st_context *st)
+{
+ struct pipe_screen *screen = st->pipe->screen;
+ GLcontext *ctx = st->ctx;
+
+ /*
+ * Extensions that are supported by all Gallium drivers:
+ */
+ ctx->Extensions.ARB_multisample = GL_TRUE; /* API support */
+ ctx->Extensions.ARB_fragment_program = GL_TRUE;
+ ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */
+ ctx->Extensions.ARB_texture_compression = GL_TRUE; /* API support only */
+ 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_blit = 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;
+
+ ctx->Extensions.SGI_color_matrix = GL_TRUE;
+ ctx->Extensions.SGIS_generate_mipmap = GL_TRUE; /* XXX temp */
+
+ /*
+ * Extensions that depend on the driver/hardware:
+ */
+ if (screen->get_param(screen, PIPE_CAP_MAX_RENDER_TARGETS) > 0) {
+ ctx->Extensions.ARB_draw_buffers = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_GLSL)) {
+ 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 (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_REPEAT) > 0) {
+ ctx->Extensions.ARB_texture_mirrored_repeat = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_TEXTURE_MIRROR_CLAMP) > 0) {
+ ctx->Extensions.EXT_texture_mirror_clamp = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
+ ctx->Extensions.ARB_texture_non_power_of_two = GL_TRUE;
+ ctx->Extensions.NV_texture_rectangle = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS) > 1) {
+ ctx->Extensions.ARB_multitexture = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_TWO_SIDED_STENCIL)) {
+ ctx->Extensions.ATI_separate_stencil = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_ANISOTROPIC_FILTER)) {
+ ctx->Extensions.EXT_texture_filter_anisotropic = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_POINT_SPRITE)) {
+ ctx->Extensions.ARB_point_sprite = GL_TRUE;
+ ctx->Extensions.NV_point_sprite = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_OCCLUSION_QUERY)) {
+ ctx->Extensions.ARB_occlusion_query = GL_TRUE;
+ }
+
+ if (screen->get_param(screen, PIPE_CAP_TEXTURE_SHADOW_MAP)) {
+ ctx->Extensions.ARB_depth_texture = GL_TRUE;
+ ctx->Extensions.ARB_shadow = GL_TRUE;
+ ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
+ /*ctx->Extensions.ARB_shadow_ambient = GL_TRUE;*/
+ }
+
+ /* GL_EXT_packed_depth_stencil requires both the ability to render to
+ * a depth/stencil buffer and texture from depth/stencil source.
+ */
+ if (screen->is_format_supported(screen, PIPE_FORMAT_Z24S8_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0) &&
+ screen->is_format_supported(screen, PIPE_FORMAT_Z24S8_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
+ ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
+ }
+ else if (screen->is_format_supported(screen, PIPE_FORMAT_S8Z24_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_TEXTURE_USAGE_DEPTH_STENCIL, 0) &&
+ screen->is_format_supported(screen, PIPE_FORMAT_S8Z24_UNORM,
+ PIPE_TEXTURE_2D,
+ PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
+ ctx->Extensions.EXT_packed_depth_stencil = GL_TRUE;
+ }
+
+ if (screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_SRGB,
+ PIPE_TEXTURE_2D,
+ PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
+ ctx->Extensions.EXT_texture_sRGB = GL_TRUE;
+ }
+
+#if 01
+ if (screen->is_format_supported(screen, PIPE_FORMAT_DXT5_RGBA,
+ PIPE_TEXTURE_2D,
+ PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
+ ctx->Extensions.EXT_texture_compression_s3tc = GL_TRUE;
+ }
+#endif
+ if (screen->is_format_supported(screen, PIPE_FORMAT_YCBCR,
+ PIPE_TEXTURE_2D,
+ PIPE_TEXTURE_USAGE_SAMPLER, 0) ||
+ screen->is_format_supported(screen, PIPE_FORMAT_YCBCR_REV,
+ PIPE_TEXTURE_2D,
+ PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
+ ctx->Extensions.MESA_ycbcr_texture = GL_TRUE;
+ }
+
+}
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