diff options
Diffstat (limited to 'src/mesa/state_tracker/st_extensions.c')
| -rw-r--r-- | src/mesa/state_tracker/st_extensions.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/src/mesa/state_tracker/st_extensions.c b/src/mesa/state_tracker/st_extensions.c new file mode 100644 index 0000000000..3f56b537bb --- /dev/null +++ b/src/mesa/state_tracker/st_extensions.c @@ -0,0 +1,186 @@ +/************************************************************************** + * + * 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;*/ + } + +} |