/**
* Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
* which GL extensions are supported.
* Quite a few extensions are always supported because they are standard
* features or can be built on top of other gallium features.
* Some fine tuning may still be needed.
*/
void st_init_extensions(struct pipe_screen *screen,
struct gl_constants *consts,
struct gl_extensions *extensions,
struct st_config_options *options,
boolean has_lib_dxtc)
{
unsigned i;
int glsl_feature_level;
GLboolean *extension_table = (GLboolean *) extensions;
static const struct st_extension_cap_mapping cap_mapping[] = {
{ o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
{ o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
{ o(ARB_color_buffer_float), PIPE_CAP_VERTEX_COLOR_UNCLAMPED },
{ o(ARB_copy_image), PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS },
{ o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
{ o(ARB_depth_texture), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
{ o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
{ o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_framebuffer_object), PIPE_CAP_MIXED_FRAMEBUFFER_SIZES },
{ o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
{ o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
{ o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
{ o(ARB_pipeline_statistics_query), PIPE_CAP_QUERY_PIPELINE_STATISTICS },
{ o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
{ o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
{ o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
{ o(ARB_shader_texture_image_samples), PIPE_CAP_TGSI_TXQS },
{ o(ARB_shader_texture_lod), PIPE_CAP_SM3 },
{ o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_texture_buffer_object), PIPE_CAP_TEXTURE_BUFFER_OBJECTS },
{ o(ARB_texture_gather), PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS },
{ o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
{ o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
{ o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
{ o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
{ o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
{ o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
{ o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
{ o(EXT_stencil_two_side), PIPE_CAP_TWO_SIDED_STENCIL },
{ o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
{ o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
{ o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
{ o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
{ o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
{ o(AMD_pinned_memory), PIPE_CAP_RESOURCE_FROM_USER_MEMORY },
{ o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
{ o(ATI_separate_stencil), PIPE_CAP_TWO_SIDED_STENCIL },
{ o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
{ o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
{ o(NV_primitive_restart), PIPE_CAP_PRIMITIVE_RESTART },
{ o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
/* GL_NV_point_sprite is not supported by gallium because we don't
* support the GL_POINT_SPRITE_R_MODE_NV option. */
{ o(OES_standard_derivatives), PIPE_CAP_SM3 },
{ o(OES_texture_float_linear), PIPE_CAP_TEXTURE_FLOAT_LINEAR },
{ o(OES_texture_half_float_linear), PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR },
{ o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
{ o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE },
{ o(ARB_texture_query_lod), PIPE_CAP_TEXTURE_QUERY_LOD },
{ o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
{ o(ARB_draw_indirect), PIPE_CAP_DRAW_INDIRECT },
{ o(ARB_derivative_control), PIPE_CAP_TGSI_FS_FINE_DERIVATIVE },
{ o(ARB_conditional_render_inverted), PIPE_CAP_CONDITIONAL_RENDER_INVERTED },
{ o(ARB_texture_view), PIPE_CAP_SAMPLER_VIEW_TARGET },
{ o(ARB_clip_control), PIPE_CAP_CLIP_HALFZ },
{ o(EXT_polygon_offset_clamp), PIPE_CAP_POLYGON_OFFSET_CLAMP },
{ o(EXT_depth_bounds_test), PIPE_CAP_DEPTH_BOUNDS_TEST },
};
/* Required: render target and sampler support */
static const struct st_extension_format_mapping rendertarget_mapping[] = {
{ { o(ARB_texture_float) },
{ PIPE_FORMAT_R32G32B32A32_FLOAT,
PIPE_FORMAT_R16G16B16A16_FLOAT } },
{ { o(OES_texture_float) },
{ PIPE_FORMAT_R32G32B32A32_FLOAT } },
{ { o(OES_texture_half_float) },
{ PIPE_FORMAT_R16G16B16A16_FLOAT } },
{ { o(ARB_texture_rgb10_a2ui) },
{ PIPE_FORMAT_R10G10B10A2_UINT,
PIPE_FORMAT_B10G10R10A2_UINT },
GL_TRUE }, /* at least one format must be supported */
{ { o(EXT_framebuffer_sRGB) },
{ PIPE_FORMAT_A8B8G8R8_SRGB,
PIPE_FORMAT_B8G8R8A8_SRGB },
GL_TRUE }, /* at least one format must be supported */
{ { o(EXT_packed_float) },
{ PIPE_FORMAT_R11G11B10_FLOAT } },
{ { o(EXT_texture_integer) },
{ PIPE_FORMAT_R32G32B32A32_UINT,
PIPE_FORMAT_R32G32B32A32_SINT } },
{ { o(ARB_texture_rg) },
{ PIPE_FORMAT_R8_UNORM,
PIPE_FORMAT_R8G8_UNORM } },
};
/* Required: depth stencil and sampler support */
static const struct st_extension_format_mapping depthstencil_mapping[] = {
{ { o(ARB_depth_buffer_float) },
{ PIPE_FORMAT_Z32_FLOAT,
PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
};
/* Required: sampler support */
static const struct st_extension_format_mapping texture_mapping[] = {
{ { o(ARB_texture_compression_rgtc) },
{ PIPE_FORMAT_RGTC1_UNORM,
PIPE_FORMAT_RGTC1_SNORM,
PIPE_FORMAT_RGTC2_UNORM,
PIPE_FORMAT_RGTC2_SNORM } },
{ { o(EXT_texture_compression_latc) },
{ PIPE_FORMAT_LATC1_UNORM,
PIPE_FORMAT_LATC1_SNORM,
PIPE_FORMAT_LATC2_UNORM,
PIPE_FORMAT_LATC2_SNORM } },
{ { o(EXT_texture_compression_s3tc),
o(ANGLE_texture_compression_dxt) },
{ PIPE_FORMAT_DXT1_RGB,
PIPE_FORMAT_DXT1_RGBA,
PIPE_FORMAT_DXT3_RGBA,
PIPE_FORMAT_DXT5_RGBA } },
{ { o(ARB_texture_compression_bptc) },
{ PIPE_FORMAT_BPTC_RGBA_UNORM,
PIPE_FORMAT_BPTC_SRGBA,
PIPE_FORMAT_BPTC_RGB_FLOAT,
PIPE_FORMAT_BPTC_RGB_UFLOAT } },
{ { o(EXT_texture_shared_exponent) },
{ PIPE_FORMAT_R9G9B9E5_FLOAT } },
{ { o(EXT_texture_snorm) },
{ PIPE_FORMAT_R8G8B8A8_SNORM } },
{ { o(EXT_texture_sRGB),
o(EXT_texture_sRGB_decode) },
{ PIPE_FORMAT_A8B8G8R8_SRGB,
PIPE_FORMAT_B8G8R8A8_SRGB },
GL_TRUE }, /* at least one format must be supported */
{ { o(ATI_texture_compression_3dc) },
{ PIPE_FORMAT_LATC2_UNORM } },
{ { o(MESA_ycbcr_texture) },
{ PIPE_FORMAT_UYVY,
PIPE_FORMAT_YUYV },
GL_TRUE }, /* at least one format must be supported */
{ { o(OES_compressed_ETC1_RGB8_texture) },
{ PIPE_FORMAT_ETC1_RGB8,
PIPE_FORMAT_R8G8B8A8_UNORM },
GL_TRUE }, /* at least one format must be supported */
{ { o(ARB_stencil_texturing),
o(ARB_texture_stencil8) },
{ PIPE_FORMAT_X24S8_UINT,
PIPE_FORMAT_S8X24_UINT },
GL_TRUE }, /* at least one format must be supported */
};
/* Required: vertex fetch support. */
static const struct st_extension_format_mapping vertex_mapping[] = {
{ { o(ARB_vertex_type_2_10_10_10_rev) },
{ PIPE_FORMAT_R10G10B10A2_UNORM,
PIPE_FORMAT_B10G10R10A2_UNORM,
PIPE_FORMAT_R10G10B10A2_SNORM,
PIPE_FORMAT_B10G10R10A2_SNORM,
PIPE_FORMAT_R10G10B10A2_USCALED,
PIPE_FORMAT_B10G10R10A2_USCALED,
PIPE_FORMAT_R10G10B10A2_SSCALED,
PIPE_FORMAT_B10G10R10A2_SSCALED } },
{ { o(ARB_vertex_type_10f_11f_11f_rev) },
{ PIPE_FORMAT_R11G11B10_FLOAT } },
};
static const struct st_extension_format_mapping tbo_rgb32[] = {
{ {o(ARB_texture_buffer_object_rgb32) },
{ PIPE_FORMAT_R32G32B32_FLOAT,
PIPE_FORMAT_R32G32B32_UINT,
PIPE_FORMAT_R32G32B32_SINT,
} },
};
/*
* Extensions that are supported by all Gallium drivers:
*/
extensions->ARB_ES2_compatibility = GL_TRUE;
extensions->ARB_draw_elements_base_vertex = GL_TRUE;
extensions->ARB_explicit_attrib_location = GL_TRUE;
extensions->ARB_explicit_uniform_location = GL_TRUE;
extensions->ARB_fragment_coord_conventions = GL_TRUE;
extensions->ARB_fragment_program = GL_TRUE;
extensions->ARB_fragment_shader = GL_TRUE;
extensions->ARB_half_float_vertex = GL_TRUE;
extensions->ARB_internalformat_query = GL_TRUE;
extensions->ARB_map_buffer_range = GL_TRUE;
extensions->ARB_texture_border_clamp = GL_TRUE; /* XXX temp */
extensions->ARB_texture_cube_map = GL_TRUE;
extensions->ARB_texture_env_combine = GL_TRUE;
extensions->ARB_texture_env_crossbar = GL_TRUE;
extensions->ARB_texture_env_dot3 = GL_TRUE;
extensions->ARB_vertex_program = GL_TRUE;
extensions->ARB_vertex_shader = GL_TRUE;
extensions->EXT_blend_color = GL_TRUE;
extensions->EXT_blend_func_separate = GL_TRUE;
extensions->EXT_blend_minmax = GL_TRUE;
extensions->EXT_gpu_program_parameters = GL_TRUE;
extensions->EXT_pixel_buffer_object = GL_TRUE;
extensions->EXT_point_parameters = GL_TRUE;
extensions->EXT_provoking_vertex = GL_TRUE;
extensions->EXT_texture_env_dot3 = GL_TRUE;
extensions->EXT_vertex_array_bgra = GL_TRUE;
extensions->ATI_texture_env_combine3 = GL_TRUE;
extensions->MESA_pack_invert = GL_TRUE;
extensions->NV_fog_distance = GL_TRUE;
extensions->NV_texture_env_combine4 = GL_TRUE;
extensions->NV_texture_rectangle = GL_TRUE;
extensions->OES_EGL_image = GL_TRUE;
extensions->OES_EGL_image_external = GL_TRUE;
extensions->OES_draw_texture = GL_TRUE;
/* Expose the extensions which directly correspond to gallium caps. */
for (i = 0; i < ARRAY_SIZE(cap_mapping); i++) {
if (screen->get_param(screen, cap_mapping[i].cap)) {
extension_table[cap_mapping[i].extension_offset] = GL_TRUE;
}
}
/* Expose the extensions which directly correspond to gallium formats. */
init_format_extensions(screen, extensions, rendertarget_mapping,
ARRAY_SIZE(rendertarget_mapping), PIPE_TEXTURE_2D,
PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
init_format_extensions(screen, extensions, depthstencil_mapping,
ARRAY_SIZE(depthstencil_mapping), PIPE_TEXTURE_2D,
PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
init_format_extensions(screen, extensions, texture_mapping,
ARRAY_SIZE(texture_mapping), PIPE_TEXTURE_2D,
PIPE_BIND_SAMPLER_VIEW);
init_format_extensions(screen, extensions, vertex_mapping,
ARRAY_SIZE(vertex_mapping), PIPE_BUFFER,
PIPE_BIND_VERTEX_BUFFER);
/* Figure out GLSL support. */
glsl_feature_level = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
consts->GLSLVersion = glsl_feature_level;
if (glsl_feature_level >= 410)
consts->GLSLVersion = 410;
_mesa_override_glsl_version(consts);
if (options->force_glsl_version > 0 &&
options->force_glsl_version <= consts->GLSLVersion) {
consts->ForceGLSLVersion = options->force_glsl_version;
}
if (glsl_feature_level >= 400)
extensions->ARB_gpu_shader5 = GL_TRUE;
if (glsl_feature_level >= 410)
extensions->ARB_shader_precision = GL_TRUE;
/* This extension needs full OpenGL 3.2, but we don't know if that's
* supported at this point. Only check the GLSL version. */
if (consts->GLSLVersion >= 150 &&
screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER_VIEWPORT)) {
extensions->AMD_vertex_shader_layer = GL_TRUE;
}
if (consts->GLSLVersion >= 130) {
consts->NativeIntegers = GL_TRUE;
consts->MaxClipPlanes = 8;
if (screen->get_param(screen, PIPE_CAP_VERTEXID_NOBASE)) {
consts->VertexID_is_zero_based = GL_TRUE;
}
/* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
extensions->ARB_conservative_depth = GL_TRUE;
extensions->ARB_shading_language_packing = GL_TRUE;
extensions->OES_depth_texture_cube_map = GL_TRUE;
extensions->ARB_shading_language_420pack = GL_TRUE;
extensions->ARB_texture_query_levels = GL_TRUE;
extensions->ARB_shader_subroutine = GL_TRUE;
if (!options->disable_shader_bit_encoding) {
extensions->ARB_shader_bit_encoding = GL_TRUE;
}
extensions->EXT_shader_integer_mix = GL_TRUE;
} else {
/* Optional integer support for GLSL 1.2. */
if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
PIPE_SHADER_CAP_INTEGERS) &&
screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
PIPE_SHADER_CAP_INTEGERS)) {
consts->NativeIntegers = GL_TRUE;
extensions->EXT_shader_integer_mix = GL_TRUE;
}
/* Integer textures make no sense before GLSL 1.30 */
extensions->EXT_texture_integer = GL_FALSE;
}
consts->UniformBooleanTrue = consts->NativeIntegers ? ~0U : fui(1.0f);
/* Below are the cases which cannot be moved into tables easily. */
if (!has_lib_dxtc && !options->force_s3tc_enable) {
extensions->EXT_texture_compression_s3tc = GL_FALSE;
extensions->ANGLE_texture_compression_dxt = GL_FALSE;
}
if (screen->get_shader_param(screen, PIPE_SHADER_TESS_CTRL,
PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
extensions->ARB_tessellation_shader = GL_TRUE;
}
if (screen->fence_finish) {
extensions->ARB_sync = GL_TRUE;
}
/* Maximum sample count. */
{
enum pipe_format color_formats[] = {
PIPE_FORMAT_R8G8B8A8_UNORM,
PIPE_FORMAT_B8G8R8A8_UNORM,
PIPE_FORMAT_A8R8G8B8_UNORM,
PIPE_FORMAT_A8B8G8R8_UNORM,
};
enum pipe_format depth_formats[] = {
PIPE_FORMAT_Z16_UNORM,
PIPE_FORMAT_Z24X8_UNORM,
PIPE_FORMAT_X8Z24_UNORM,
PIPE_FORMAT_Z32_UNORM,
PIPE_FORMAT_Z32_FLOAT
};
enum pipe_format int_formats[] = {
PIPE_FORMAT_R8G8B8A8_SINT
};
consts->MaxSamples =
get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
color_formats, 16,
PIPE_BIND_RENDER_TARGET);
consts->MaxColorTextureSamples =
get_max_samples_for_formats(screen, ARRAY_SIZE(color_formats),
color_formats, consts->MaxSamples,
PIPE_BIND_SAMPLER_VIEW);
consts->MaxDepthTextureSamples =
get_max_samples_for_formats(screen, ARRAY_SIZE(depth_formats),
depth_formats, consts->MaxSamples,
PIPE_BIND_SAMPLER_VIEW);
consts->MaxIntegerSamples =
get_max_samples_for_formats(screen, ARRAY_SIZE(int_formats),
int_formats, consts->MaxSamples,
PIPE_BIND_SAMPLER_VIEW);
}
if (consts->MaxSamples == 1) {
/* one sample doesn't really make sense */
consts->MaxSamples = 0;
}
else if (consts->MaxSamples >= 2) {
extensions->EXT_framebuffer_multisample = GL_TRUE;
extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
}
if (consts->MaxSamples == 0 && screen->get_param(screen, PIPE_CAP_FAKE_SW_MSAA)) {
consts->FakeSWMSAA = GL_TRUE;
extensions->EXT_framebuffer_multisample = GL_TRUE;
extensions->EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
extensions->ARB_texture_multisample = GL_TRUE;
}
if (consts->MaxDualSourceDrawBuffers > 0 &&
!options->disable_blend_func_extended)
extensions->ARB_blend_func_extended = GL_TRUE;
if (screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED) ||
extensions->ARB_timer_query) {
extensions->EXT_timer_query = GL_TRUE;
}
if (extensions->ARB_transform_feedback2 &&
extensions->ARB_draw_instanced) {
extensions->ARB_transform_feedback_instanced = GL_TRUE;
}
if (options->force_glsl_extensions_warn)
consts->ForceGLSLExtensionsWarn = 1;
if (options->disable_glsl_line_continuations)
consts->DisableGLSLLineContinuations = 1;
if (options->allow_glsl_extension_directive_midshader)
consts->AllowGLSLExtensionDirectiveMidShader = GL_TRUE;
consts->MinMapBufferAlignment =
screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
if (extensions->ARB_texture_buffer_object) {
consts->MaxTextureBufferSize =
_min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
(1u << 31) - 1);
consts->TextureBufferOffsetAlignment =
screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
if (consts->TextureBufferOffsetAlignment)
extensions->ARB_texture_buffer_range = GL_TRUE;
init_format_extensions(screen, extensions, tbo_rgb32,
ARRAY_SIZE(tbo_rgb32), PIPE_BUFFER,
PIPE_BIND_SAMPLER_VIEW);
}
/* Unpacking a varying in the fragment shader costs 1 texture indirection.
* If the number of available texture indirections is very limited, then we
* prefer to disable varying packing rather than run the risk of varying
* packing preventing a shader from running.
*/
if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
/* We can't disable varying packing if transform feedback is available,
* because transform feedback code assumes a packed varying layout.
*/
if (!extensions->EXT_transform_feedback)
consts->DisableVaryingPacking = GL_TRUE;
}
consts->MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
if (consts->MaxViewports >= 16) {
if (glsl_feature_level >= 400) {
consts->ViewportBounds.Min = -32768.0;
consts->ViewportBounds.Max = 32767.0;
} else {
consts->ViewportBounds.Min = -16384.0;
consts->ViewportBounds.Max = 16383.0;
}
extensions->ARB_viewport_array = GL_TRUE;
extensions->ARB_fragment_layer_viewport = GL_TRUE;
if (extensions->AMD_vertex_shader_layer)
extensions->AMD_vertex_shader_viewport_index = GL_TRUE;
}
/* GL_ARB_ES3_compatibility.
*
* Assume that ES3 is supported if GLSL 3.30 is supported.
* (OpenGL 3.3 is a requirement for that extension.)
*/
if (consts->GLSLVersion >= 330 &&
/* Requirements for ETC2 emulation. */
screen->is_format_supported(screen, PIPE_FORMAT_R8G8B8A8_UNORM,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_SAMPLER_VIEW) &&
screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_SRGB,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_SAMPLER_VIEW) &&
screen->is_format_supported(screen, PIPE_FORMAT_R16_UNORM,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_SAMPLER_VIEW) &&
screen->is_format_supported(screen, PIPE_FORMAT_R16G16_UNORM,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_SAMPLER_VIEW) &&
screen->is_format_supported(screen, PIPE_FORMAT_R16_SNORM,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_SAMPLER_VIEW) &&
screen->is_format_supported(screen, PIPE_FORMAT_R16G16_SNORM,
PIPE_TEXTURE_2D, 0,
PIPE_BIND_SAMPLER_VIEW)) {
extensions->ARB_ES3_compatibility = GL_TRUE;
}
if (screen->get_video_param &&
screen->get_video_param(screen, PIPE_VIDEO_PROFILE_UNKNOWN,
PIPE_VIDEO_ENTRYPOINT_BITSTREAM,
PIPE_VIDEO_CAP_SUPPORTS_INTERLACED)) {
extensions->NV_vdpau_interop = GL_TRUE;
}
if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
PIPE_SHADER_CAP_DOUBLES) &&
screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
PIPE_SHADER_CAP_DOUBLES)) {
extensions->ARB_gpu_shader_fp64 = GL_TRUE;
extensions->ARB_vertex_attrib_64bit = GL_TRUE;
}
}
/**
* Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
* which GL extensions are supported.
* Quite a few extensions are always supported because they are standard
* features or can be built on top of other gallium features.
* Some fine tuning may still be needed.
*/
void st_init_extensions(struct st_context *st)
{
struct pipe_screen *screen = st->pipe->screen;
struct gl_context *ctx = st->ctx;
int i, glsl_feature_level;
GLboolean *extensions = (GLboolean *) &ctx->Extensions;
static const struct st_extension_cap_mapping cap_mapping[] = {
{ o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
{ o(ARB_buffer_storage), PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT },
{ o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
{ o(ARB_depth_texture), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
{ o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
{ o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
{ o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
{ o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
{ o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
{ o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
{ o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
{ o(ARB_shader_texture_lod), PIPE_CAP_SM3 },
{ o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_texture_mirror_clamp_to_edge), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
{ o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
{ o(ARB_timer_query), PIPE_CAP_QUERY_TIMESTAMP },
{ o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
{ o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
{ o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
{ o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
{ o(EXT_stencil_two_side), PIPE_CAP_TWO_SIDED_STENCIL },
{ o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
{ o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
{ o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
{ o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
{ o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
{ o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
{ o(ATI_separate_stencil), PIPE_CAP_TWO_SIDED_STENCIL },
{ o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
{ o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
{ o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
/* GL_NV_point_sprite is not supported by gallium because we don't
* support the GL_POINT_SPRITE_R_MODE_NV option. */
{ o(OES_standard_derivatives), PIPE_CAP_SM3 },
{ o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY },
{ o(ARB_texture_multisample), PIPE_CAP_TEXTURE_MULTISAMPLE }
};
/* Required: render target and sampler support */
static const struct st_extension_format_mapping rendertarget_mapping[] = {
{ { o(ARB_texture_float) },
{ PIPE_FORMAT_R32G32B32A32_FLOAT,
PIPE_FORMAT_R16G16B16A16_FLOAT } },
{ { o(ARB_texture_rgb10_a2ui) },
{ PIPE_FORMAT_R10G10B10A2_UINT,
PIPE_FORMAT_B10G10R10A2_UINT },
GL_TRUE }, /* at least one format must be supported */
{ { o(EXT_framebuffer_sRGB) },
{ PIPE_FORMAT_A8B8G8R8_SRGB,
PIPE_FORMAT_B8G8R8A8_SRGB },
GL_TRUE }, /* at least one format must be supported */
{ { o(EXT_packed_float) },
{ PIPE_FORMAT_R11G11B10_FLOAT } },
{ { o(EXT_texture_integer) },
{ PIPE_FORMAT_R32G32B32A32_UINT,
PIPE_FORMAT_R32G32B32A32_SINT } },
{ { o(ARB_texture_rg) },
{ PIPE_FORMAT_R8_UNORM,
PIPE_FORMAT_R8G8_UNORM } },
};
/* Required: depth stencil and sampler support */
static const struct st_extension_format_mapping depthstencil_mapping[] = {
{ { o(ARB_depth_buffer_float) },
{ PIPE_FORMAT_Z32_FLOAT,
PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
};
/* Required: sampler support */
static const struct st_extension_format_mapping texture_mapping[] = {
{ { o(ARB_texture_compression_rgtc) },
{ PIPE_FORMAT_RGTC1_UNORM,
PIPE_FORMAT_RGTC1_SNORM,
PIPE_FORMAT_RGTC2_UNORM,
PIPE_FORMAT_RGTC2_SNORM } },
{ { o(EXT_texture_compression_latc) },
{ PIPE_FORMAT_LATC1_UNORM,
PIPE_FORMAT_LATC1_SNORM,
PIPE_FORMAT_LATC2_UNORM,
PIPE_FORMAT_LATC2_SNORM } },
{ { o(EXT_texture_compression_s3tc),
o(ANGLE_texture_compression_dxt) },
{ PIPE_FORMAT_DXT1_RGB,
PIPE_FORMAT_DXT1_RGBA,
PIPE_FORMAT_DXT3_RGBA,
PIPE_FORMAT_DXT5_RGBA } },
{ { o(EXT_texture_shared_exponent) },
{ PIPE_FORMAT_R9G9B9E5_FLOAT } },
{ { o(EXT_texture_snorm) },
{ PIPE_FORMAT_R8G8B8A8_SNORM } },
{ { o(EXT_texture_sRGB),
o(EXT_texture_sRGB_decode) },
{ PIPE_FORMAT_A8B8G8R8_SRGB,
PIPE_FORMAT_B8G8R8A8_SRGB },
GL_TRUE }, /* at least one format must be supported */
{ { o(ATI_texture_compression_3dc) },
{ PIPE_FORMAT_LATC2_UNORM } },
{ { o(MESA_ycbcr_texture) },
{ PIPE_FORMAT_UYVY,
PIPE_FORMAT_YUYV },
GL_TRUE }, /* at least one format must be supported */
{ { o(OES_compressed_ETC1_RGB8_texture) },
{ PIPE_FORMAT_ETC1_RGB8 } },
};
/* Required: vertex fetch support. */
static const struct st_extension_format_mapping vertex_mapping[] = {
{ { o(ARB_vertex_type_2_10_10_10_rev) },
{ PIPE_FORMAT_R10G10B10A2_UNORM,
PIPE_FORMAT_B10G10R10A2_UNORM,
PIPE_FORMAT_R10G10B10A2_SNORM,
PIPE_FORMAT_B10G10R10A2_SNORM,
PIPE_FORMAT_R10G10B10A2_USCALED,
PIPE_FORMAT_B10G10R10A2_USCALED,
PIPE_FORMAT_R10G10B10A2_SSCALED,
PIPE_FORMAT_B10G10R10A2_SSCALED } },
{ { o(ARB_vertex_type_10f_11f_11f_rev) },
{ PIPE_FORMAT_R11G11B10_FLOAT } },
};
static const struct st_extension_format_mapping tbo_rgb32[] = {
{ {o(ARB_texture_buffer_object_rgb32) },
{ PIPE_FORMAT_R32G32B32_FLOAT,
PIPE_FORMAT_R32G32B32_UINT,
PIPE_FORMAT_R32G32B32_SINT,
} },
};
/*
* Extensions that are supported by all Gallium drivers:
*/
ctx->Extensions.ARB_ES2_compatibility = GL_TRUE;
ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
ctx->Extensions.ARB_fragment_program = GL_TRUE;
ctx->Extensions.ARB_fragment_shader = GL_TRUE;
ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
ctx->Extensions.ARB_internalformat_query = GL_TRUE;
ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */
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_shader = GL_TRUE;
ctx->Extensions.EXT_blend_color = GL_TRUE;
ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
ctx->Extensions.EXT_blend_minmax = GL_TRUE;
ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
ctx->Extensions.EXT_point_parameters = GL_TRUE;
ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
/* IMPORTANT:
* Don't enable EXT_separate_shader_objects. It disallows a certain
* optimization in the GLSL compiler and therefore is considered
* harmful.
*/
ctx->Extensions.EXT_separate_shader_objects = GL_FALSE;
ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
ctx->Extensions.MESA_pack_invert = GL_TRUE;
ctx->Extensions.NV_fog_distance = GL_TRUE;
ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
ctx->Extensions.NV_texture_rectangle = GL_TRUE;
ctx->Extensions.NV_vdpau_interop = GL_TRUE;
ctx->Extensions.OES_EGL_image = GL_TRUE;
ctx->Extensions.OES_EGL_image_external = GL_TRUE;
ctx->Extensions.OES_draw_texture = GL_TRUE;
/* Expose the extensions which directly correspond to gallium caps. */
for (i = 0; i < Elements(cap_mapping); i++) {
if (screen->get_param(screen, cap_mapping[i].cap)) {
extensions[cap_mapping[i].extension_offset] = GL_TRUE;
}
}
/* Expose the extensions which directly correspond to gallium formats. */
init_format_extensions(st, rendertarget_mapping,
Elements(rendertarget_mapping), PIPE_TEXTURE_2D,
PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
init_format_extensions(st, depthstencil_mapping,
Elements(depthstencil_mapping), PIPE_TEXTURE_2D,
PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
init_format_extensions(st, texture_mapping, Elements(texture_mapping),
PIPE_TEXTURE_2D, PIPE_BIND_SAMPLER_VIEW);
init_format_extensions(st, vertex_mapping, Elements(vertex_mapping),
PIPE_BUFFER, PIPE_BIND_VERTEX_BUFFER);
/* Figure out GLSL support. */
glsl_feature_level = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
ctx->Const.GLSLVersion = glsl_feature_level;
if (glsl_feature_level >= 330)
ctx->Const.GLSLVersion = 330;
_mesa_override_glsl_version(st->ctx);
if (st->options.force_glsl_version > 0 &&
st->options.force_glsl_version <= ctx->Const.GLSLVersion) {
ctx->Const.ForceGLSLVersion = st->options.force_glsl_version;
}
/* This extension needs full OpenGL 3.2, but we don't know if that's
* supported at this point. Only check the GLSL version. */
if (ctx->Const.GLSLVersion >= 150 &&
screen->get_param(screen, PIPE_CAP_TGSI_VS_LAYER)) {
ctx->Extensions.AMD_vertex_shader_layer = GL_TRUE;
}
if (ctx->Const.GLSLVersion >= 130) {
ctx->Const.NativeIntegers = GL_TRUE;
ctx->Const.MaxClipPlanes = 8;
/* Extensions that either depend on GLSL 1.30 or are a subset thereof. */
ctx->Extensions.ARB_conservative_depth = GL_TRUE;
ctx->Extensions.ARB_shading_language_packing = GL_TRUE;
ctx->Extensions.OES_depth_texture_cube_map = GL_TRUE;
ctx->Extensions.ARB_shading_language_420pack = GL_TRUE;
if (!st->options.disable_shader_bit_encoding) {
ctx->Extensions.ARB_shader_bit_encoding = GL_TRUE;
}
} else {
/* Optional integer support for GLSL 1.2. */
if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
PIPE_SHADER_CAP_INTEGERS) &&
screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
PIPE_SHADER_CAP_INTEGERS)) {
ctx->Const.NativeIntegers = GL_TRUE;
}
}
/* Below are the cases which cannot be moved into tables easily. */
if (!ctx->Mesa_DXTn && !st->options.force_s3tc_enable) {
ctx->Extensions.EXT_texture_compression_s3tc = GL_FALSE;
ctx->Extensions.ANGLE_texture_compression_dxt = GL_FALSE;
}
if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */
ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;
#endif
}
ctx->Extensions.NV_primitive_restart = GL_TRUE;
if (!screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) {
ctx->Const.PrimitiveRestartInSoftware = GL_TRUE;
}
/* ARB_color_buffer_float. */
if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
ctx->Extensions.ARB_color_buffer_float = GL_TRUE;
if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) {
st->clamp_vert_color_in_shader = TRUE;
}
if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
st->clamp_frag_color_in_shader = TRUE;
}
/* For drivers which cannot do color clamping, it's better to just
* disable ARB_color_buffer_float in the core profile, because
* the clamping is deprecated there anyway. */
if (ctx->API == API_OPENGL_CORE &&
(st->clamp_frag_color_in_shader || st->clamp_vert_color_in_shader)) {
st->clamp_vert_color_in_shader = GL_FALSE;
st->clamp_frag_color_in_shader = GL_FALSE;
ctx->Extensions.ARB_color_buffer_float = GL_FALSE;
}
}
if (screen->fence_finish) {
ctx->Extensions.ARB_sync = GL_TRUE;
}
/* Maximum sample count. */
for (i = 16; i > 0; --i) {
enum pipe_format pformat = st_choose_format(st, GL_RGBA,
GL_NONE, GL_NONE,
PIPE_TEXTURE_2D, i,
PIPE_BIND_RENDER_TARGET, FALSE);
if (pformat != PIPE_FORMAT_NONE) {
ctx->Const.MaxSamples = i;
ctx->Const.MaxColorTextureSamples = i;
break;
}
}
for (i = ctx->Const.MaxSamples; i > 0; --i) {
enum pipe_format pformat = st_choose_format(st, GL_DEPTH_STENCIL,
GL_NONE, GL_NONE,
PIPE_TEXTURE_2D, i,
PIPE_BIND_DEPTH_STENCIL, FALSE);
if (pformat != PIPE_FORMAT_NONE) {
ctx->Const.MaxDepthTextureSamples = i;
break;
}
}
for (i = ctx->Const.MaxSamples; i > 0; --i) {
enum pipe_format pformat = st_choose_format(st, GL_RGBA_INTEGER,
GL_NONE, GL_NONE,
PIPE_TEXTURE_2D, i,
PIPE_BIND_RENDER_TARGET, FALSE);
if (pformat != PIPE_FORMAT_NONE) {
ctx->Const.MaxIntegerSamples = i;
break;
}
}
if (ctx->Const.MaxSamples == 1) {
/* one sample doesn't really make sense */
ctx->Const.MaxSamples = 0;
}
else if (ctx->Const.MaxSamples >= 2) {
ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
ctx->Extensions.EXT_framebuffer_multisample_blit_scaled = GL_TRUE;
}
if (ctx->Const.MaxDualSourceDrawBuffers > 0 &&
!st->options.disable_blend_func_extended)
ctx->Extensions.ARB_blend_func_extended = GL_TRUE;
st->has_time_elapsed =
screen->get_param(screen, PIPE_CAP_QUERY_TIME_ELAPSED);
if (st->has_time_elapsed ||
ctx->Extensions.ARB_timer_query) {
ctx->Extensions.EXT_timer_query = GL_TRUE;
}
if (ctx->Extensions.ARB_transform_feedback2 &&
ctx->Extensions.ARB_draw_instanced) {
ctx->Extensions.ARB_transform_feedback_instanced = GL_TRUE;
}
if (st->options.force_glsl_extensions_warn)
ctx->Const.ForceGLSLExtensionsWarn = 1;
if (st->options.disable_glsl_line_continuations)
ctx->Const.DisableGLSLLineContinuations = 1;
ctx->Const.MinMapBufferAlignment =
screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
if (screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OBJECTS)) {
ctx->Extensions.ARB_texture_buffer_object = GL_TRUE;
ctx->Const.MaxTextureBufferSize =
_min(screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE),
(1u << 31) - 1);
ctx->Const.TextureBufferOffsetAlignment =
screen->get_param(screen, PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT);
if (ctx->Const.TextureBufferOffsetAlignment)
ctx->Extensions.ARB_texture_buffer_range = GL_TRUE;
init_format_extensions(st, tbo_rgb32, Elements(tbo_rgb32),
PIPE_BUFFER, PIPE_BIND_SAMPLER_VIEW);
}
if (screen->get_param(screen, PIPE_CAP_MIXED_FRAMEBUFFER_SIZES)) {
ctx->Extensions.ARB_framebuffer_object = GL_TRUE;
}
/* Unpacking a varying in the fragment shader costs 1 texture indirection.
* If the number of available texture indirections is very limited, then we
* prefer to disable varying packing rather than run the risk of varying
* packing preventing a shader from running.
*/
if (screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS) <= 8) {
/* We can't disable varying packing if transform feedback is available,
* because transform feedback code assumes a packed varying layout.
*/
if (!ctx->Extensions.EXT_transform_feedback)
ctx->Const.DisableVaryingPacking = GL_TRUE;
}
if (ctx->API == API_OPENGL_CORE) {
ctx->Const.MaxViewports = screen->get_param(screen, PIPE_CAP_MAX_VIEWPORTS);
if (ctx->Const.MaxViewports >= 16) {
ctx->Const.ViewportBounds.Min = -16384.0;
ctx->Const.ViewportBounds.Max = 16384.0;
ctx->Extensions.ARB_viewport_array = GL_TRUE;
}
}
if (ctx->Const.MaxProgramTextureGatherComponents > 0)
ctx->Extensions.ARB_texture_gather = GL_TRUE;
}
/**
* Use pipe_screen::get_param() to query PIPE_CAP_ values to determine
* which GL extensions are supported.
* Quite a few extensions are always supported because they are standard
* features or can be built on top of other gallium features.
* Some fine tuning may still be needed.
*/
void st_init_extensions(struct st_context *st)
{
struct pipe_screen *screen = st->pipe->screen;
struct gl_context *ctx = st->ctx;
int i, glsl_feature_level;
GLboolean *extensions = (GLboolean *) &ctx->Extensions;
static const struct st_extension_cap_mapping cap_mapping[] = {
{ o(ARB_base_instance), PIPE_CAP_START_INSTANCE },
{ o(ARB_depth_clamp), PIPE_CAP_DEPTH_CLIP_DISABLE },
{ o(ARB_depth_texture), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_draw_buffers_blend), PIPE_CAP_INDEP_BLEND_FUNC },
{ o(ARB_draw_instanced), PIPE_CAP_TGSI_INSTANCEID },
{ o(ARB_fragment_program_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_instanced_arrays), PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR },
{ o(ARB_occlusion_query), PIPE_CAP_OCCLUSION_QUERY },
{ o(ARB_occlusion_query2), PIPE_CAP_OCCLUSION_QUERY },
{ o(ARB_point_sprite), PIPE_CAP_POINT_SPRITE },
{ o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
{ o(ARB_shader_stencil_export), PIPE_CAP_SHADER_STENCIL_EXPORT },
{ o(ARB_shader_texture_lod), PIPE_CAP_SM3 },
{ o(ARB_shadow), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(ARB_texture_non_power_of_two), PIPE_CAP_NPOT_TEXTURES },
{ o(ARB_transform_feedback2), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
{ o(ARB_transform_feedback3), PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME },
{ o(EXT_blend_equation_separate), PIPE_CAP_BLEND_EQUATION_SEPARATE },
{ o(EXT_draw_buffers2), PIPE_CAP_INDEP_BLEND_ENABLE },
{ o(EXT_shadow_funcs), PIPE_CAP_TEXTURE_SHADOW_MAP },
{ o(EXT_stencil_two_side), PIPE_CAP_TWO_SIDED_STENCIL },
{ o(EXT_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
{ o(EXT_texture_filter_anisotropic), PIPE_CAP_ANISOTROPIC_FILTER },
{ o(EXT_texture_mirror_clamp), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
{ o(EXT_texture_swizzle), PIPE_CAP_TEXTURE_SWIZZLE },
{ o(EXT_timer_query), PIPE_CAP_TIMER_QUERY },
{ o(EXT_transform_feedback), PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS },
{ o(AMD_seamless_cubemap_per_texture), PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE },
{ o(ATI_separate_stencil), PIPE_CAP_TWO_SIDED_STENCIL },
{ o(ATI_texture_mirror_once), PIPE_CAP_TEXTURE_MIRROR_CLAMP },
{ o(NV_conditional_render), PIPE_CAP_CONDITIONAL_RENDER },
{ o(NV_texture_barrier), PIPE_CAP_TEXTURE_BARRIER },
/* GL_NV_point_sprite is not supported by gallium because we don't
* support the GL_POINT_SPRITE_R_MODE_NV option. */
{ o(MESA_texture_array), PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS },
{ o(OES_standard_derivatives), PIPE_CAP_SM3 },
{ o(ARB_texture_cube_map_array), PIPE_CAP_CUBE_MAP_ARRAY }
};
/* Required: render target and sampler support */
static const struct st_extension_format_mapping rendertarget_mapping[] = {
{ { o(ARB_texture_float) },
{ PIPE_FORMAT_R32G32B32A32_FLOAT,
PIPE_FORMAT_R16G16B16A16_FLOAT } },
{ { o(ARB_texture_rgb10_a2ui) },
{ PIPE_FORMAT_B10G10R10A2_UINT } },
{ { o(EXT_framebuffer_sRGB) },
{ PIPE_FORMAT_A8B8G8R8_SRGB,
PIPE_FORMAT_B8G8R8A8_SRGB },
GL_TRUE }, /* at least one format must be supported */
{ { o(EXT_packed_float) },
{ PIPE_FORMAT_R11G11B10_FLOAT } },
{ { o(EXT_texture_integer) },
{ PIPE_FORMAT_R32G32B32A32_UINT,
PIPE_FORMAT_R32G32B32A32_SINT } },
};
/* Required: depth stencil and sampler support */
static const struct st_extension_format_mapping depthstencil_mapping[] = {
{ { o(ARB_depth_buffer_float) },
{ PIPE_FORMAT_Z32_FLOAT,
PIPE_FORMAT_Z32_FLOAT_S8X24_UINT } },
{ { o(ARB_framebuffer_object),
o(EXT_packed_depth_stencil) },
{ PIPE_FORMAT_S8_UINT_Z24_UNORM,
PIPE_FORMAT_Z24_UNORM_S8_UINT },
GL_TRUE }, /* at least one format must be supported */
};
/* Required: sampler support */
static const struct st_extension_format_mapping texture_mapping[] = {
{ { o(ARB_texture_compression_rgtc) },
{ PIPE_FORMAT_RGTC1_UNORM,
PIPE_FORMAT_RGTC1_SNORM,
PIPE_FORMAT_RGTC2_UNORM,
PIPE_FORMAT_RGTC2_SNORM } },
{ { o(ARB_texture_rg) },
{ PIPE_FORMAT_R8G8_UNORM } },
{ { o(EXT_texture_compression_latc) },
{ PIPE_FORMAT_LATC1_UNORM,
PIPE_FORMAT_LATC1_SNORM,
PIPE_FORMAT_LATC2_UNORM,
PIPE_FORMAT_LATC2_SNORM } },
{ { o(EXT_texture_compression_s3tc),
o(S3_s3tc) },
{ PIPE_FORMAT_DXT1_RGB,
PIPE_FORMAT_DXT1_RGBA,
PIPE_FORMAT_DXT3_RGBA,
PIPE_FORMAT_DXT5_RGBA } },
{ { o(EXT_texture_shared_exponent) },
{ PIPE_FORMAT_R9G9B9E5_FLOAT } },
{ { o(EXT_texture_snorm) },
{ PIPE_FORMAT_R8G8B8A8_SNORM } },
{ { o(EXT_texture_sRGB),
o(EXT_texture_sRGB_decode) },
{ PIPE_FORMAT_A8B8G8R8_SRGB,
PIPE_FORMAT_B8G8R8A8_SRGB },
GL_TRUE }, /* at least one format must be supported */
{ { o(ATI_texture_compression_3dc) },
{ PIPE_FORMAT_LATC2_UNORM } },
{ { o(MESA_ycbcr_texture) },
{ PIPE_FORMAT_UYVY,
PIPE_FORMAT_YUYV },
GL_TRUE }, /* at least one format must be supported */
{ { o(OES_compressed_ETC1_RGB8_texture) },
{ PIPE_FORMAT_ETC1_RGB8 } },
};
/* Required: vertex fetch support. */
static const struct st_extension_format_mapping vertex_mapping[] = {
{ { o(ARB_vertex_type_2_10_10_10_rev) },
{ PIPE_FORMAT_R10G10B10A2_UNORM,
PIPE_FORMAT_B10G10R10A2_UNORM,
PIPE_FORMAT_R10G10B10A2_SNORM,
PIPE_FORMAT_B10G10R10A2_SNORM,
PIPE_FORMAT_R10G10B10A2_USCALED,
PIPE_FORMAT_B10G10R10A2_USCALED,
PIPE_FORMAT_R10G10B10A2_SSCALED,
PIPE_FORMAT_B10G10R10A2_SSCALED } },
};
/*
* Extensions that are supported by all Gallium drivers:
*/
ctx->Extensions.ARB_ES2_compatibility = GL_TRUE;
ctx->Extensions.ARB_draw_elements_base_vertex = GL_TRUE;
ctx->Extensions.ARB_explicit_attrib_location = GL_TRUE;
ctx->Extensions.ARB_fragment_coord_conventions = GL_TRUE;
ctx->Extensions.ARB_fragment_program = GL_TRUE;
ctx->Extensions.ARB_fragment_shader = GL_TRUE;
ctx->Extensions.ARB_half_float_pixel = GL_TRUE;
ctx->Extensions.ARB_half_float_vertex = GL_TRUE;
ctx->Extensions.ARB_map_buffer_range = GL_TRUE;
ctx->Extensions.ARB_shader_objects = GL_TRUE;
ctx->Extensions.ARB_shading_language_100 = GL_TRUE;
ctx->Extensions.ARB_texture_border_clamp = GL_TRUE; /* XXX temp */
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_texture_storage = GL_TRUE;
ctx->Extensions.ARB_vertex_program = GL_TRUE;
ctx->Extensions.ARB_vertex_shader = GL_TRUE;
ctx->Extensions.EXT_blend_color = GL_TRUE;
ctx->Extensions.EXT_blend_func_separate = GL_TRUE;
ctx->Extensions.EXT_blend_minmax = GL_TRUE;
ctx->Extensions.EXT_framebuffer_blit = GL_TRUE;
ctx->Extensions.EXT_framebuffer_object = GL_TRUE;
ctx->Extensions.EXT_framebuffer_multisample = GL_TRUE;
ctx->Extensions.EXT_fog_coord = GL_TRUE;
ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
ctx->Extensions.EXT_point_parameters = GL_TRUE;
ctx->Extensions.EXT_provoking_vertex = GL_TRUE;
ctx->Extensions.EXT_secondary_color = GL_TRUE;
ctx->Extensions.EXT_separate_shader_objects = GL_TRUE;
ctx->Extensions.EXT_texture_env_dot3 = GL_TRUE;
ctx->Extensions.EXT_vertex_array_bgra = GL_TRUE;
ctx->Extensions.ATI_texture_env_combine3 = GL_TRUE;
ctx->Extensions.MESA_pack_invert = GL_TRUE;
ctx->Extensions.NV_blend_square = GL_TRUE;
ctx->Extensions.NV_fog_distance = GL_TRUE;
ctx->Extensions.NV_texture_env_combine4 = GL_TRUE;
ctx->Extensions.NV_texture_rectangle = GL_TRUE;
ctx->Extensions.OES_EGL_image = GL_TRUE;
if (ctx->API != API_OPENGL_COMPAT)
ctx->Extensions.OES_EGL_image_external = GL_TRUE;
ctx->Extensions.OES_draw_texture = GL_TRUE;
/* Expose the extensions which directly correspond to gallium caps. */
for (i = 0; i < Elements(cap_mapping); i++) {
if (screen->get_param(screen, cap_mapping[i].cap)) {
extensions[cap_mapping[i].extension_offset] = GL_TRUE;
}
}
/* Expose the extensions which directly correspond to gallium formats. */
init_format_extensions(st, rendertarget_mapping,
Elements(rendertarget_mapping), PIPE_TEXTURE_2D,
PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW);
init_format_extensions(st, depthstencil_mapping,
Elements(depthstencil_mapping), PIPE_TEXTURE_2D,
PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_SAMPLER_VIEW);
init_format_extensions(st, texture_mapping, Elements(texture_mapping),
PIPE_TEXTURE_2D, PIPE_BIND_SAMPLER_VIEW);
init_format_extensions(st, vertex_mapping, Elements(vertex_mapping),
PIPE_BUFFER, PIPE_BIND_VERTEX_BUFFER);
/* Figure out GLSL support. */
glsl_feature_level = screen->get_param(screen, PIPE_CAP_GLSL_FEATURE_LEVEL);
if (glsl_feature_level >= 130) {
ctx->Const.GLSLVersion = 130;
} else {
ctx->Const.GLSLVersion = 120;
}
_mesa_override_glsl_version(st->ctx);
if (ctx->Const.GLSLVersion >= 130) {
ctx->Const.NativeIntegers = GL_TRUE;
ctx->Const.MaxClipPlanes = 8;
/* Extensions that only depend on GLSL 1.3. */
ctx->Extensions.ARB_conservative_depth = GL_TRUE;
ctx->Extensions.ARB_shader_bit_encoding = GL_TRUE;
} else {
/* Optional integer support for GLSL 1.2. */
if (screen->get_shader_param(screen, PIPE_SHADER_VERTEX,
PIPE_SHADER_CAP_INTEGERS) &&
screen->get_shader_param(screen, PIPE_SHADER_FRAGMENT,
PIPE_SHADER_CAP_INTEGERS)) {
ctx->Const.NativeIntegers = GL_TRUE;
}
}
/* Below are the cases which cannot be moved into tables easily. */
if (!ctx->Mesa_DXTn && !st_get_s3tc_override()) {
ctx->Extensions.EXT_texture_compression_s3tc = GL_FALSE;
ctx->Extensions.S3_s3tc = GL_FALSE;
}
if (screen->get_shader_param(screen, PIPE_SHADER_GEOMETRY,
PIPE_SHADER_CAP_MAX_INSTRUCTIONS) > 0) {
#if 0 /* XXX re-enable when GLSL compiler again supports geometry shaders */
ctx->Extensions.ARB_geometry_shader4 = GL_TRUE;
#endif
}
ctx->Extensions.NV_primitive_restart = GL_TRUE;
if (!screen->get_param(screen, PIPE_CAP_PRIMITIVE_RESTART)) {
ctx->Const.PrimitiveRestartInSoftware = GL_TRUE;
}
if (screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_UNCLAMPED)) {
ctx->Extensions.ARB_color_buffer_float = GL_TRUE;
if (!screen->get_param(screen, PIPE_CAP_VERTEX_COLOR_CLAMPED)) {
st->clamp_vert_color_in_shader = TRUE;
}
if (!screen->get_param(screen, PIPE_CAP_FRAGMENT_COLOR_CLAMPED)) {
st->clamp_frag_color_in_shader = TRUE;
}
}
if (screen->fence_finish) {
ctx->Extensions.ARB_sync = GL_TRUE;
}
/* Maximum sample count. */
for (i = 16; i > 0; --i) {
if (screen->is_format_supported(screen, PIPE_FORMAT_B8G8R8A8_UNORM,
PIPE_TEXTURE_2D, i,
PIPE_BIND_RENDER_TARGET)) {
ctx->Const.MaxSamples = i;
break;
}
}
if (ctx->Const.MaxDualSourceDrawBuffers > 0)
ctx->Extensions.ARB_blend_func_extended = GL_TRUE;
if (screen->get_param(screen, PIPE_CAP_TIMER_QUERY) &&
screen->get_param(screen, PIPE_CAP_QUERY_TIMESTAMP)) {
ctx->Extensions.ARB_timer_query = GL_TRUE;
}
if (ctx->Extensions.ARB_transform_feedback2 &&
ctx->Extensions.ARB_draw_instanced) {
ctx->Extensions.ARB_transform_feedback_instanced = GL_TRUE;
}
if (st->options.force_glsl_extensions_warn)
ctx->Const.ForceGLSLExtensionsWarn = 1;
ctx->Const.MinMapBufferAlignment =
screen->get_param(screen, PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT);
if (ctx->Const.MinMapBufferAlignment >= 64) {
ctx->Extensions.ARB_map_buffer_alignment = GL_TRUE;
}
}
