diff options
Diffstat (limited to 'src/mesa/es/main/specials_es1.c')
| -rw-r--r-- | src/mesa/es/main/specials_es1.c | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/src/mesa/es/main/specials_es1.c b/src/mesa/es/main/specials_es1.c new file mode 100644 index 00000000000..84d339ebf67 --- /dev/null +++ b/src/mesa/es/main/specials_es1.c @@ -0,0 +1,186 @@ +/************************************************************************** + * + * Copyright 2008 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, 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 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 + * TUNGSTEN GRAPHICS 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/mtypes.h" +#include "main/context.h" +#include "main/imports.h" +#include "main/get.h" + + +extern const GLubyte * GLAPIENTRY _es_GetString(GLenum name); + + +static const GLubyte * +compute_es_version(void) +{ + GET_CURRENT_CONTEXT(ctx); + static const char es_1_0[] = "OpenGL ES-CM 1.0"; + static const char es_1_1[] = "OpenGL ES-CM 1.1"; + /* OpenGL ES 1.0 is derived from OpenGL 1.3 */ + const GLboolean ver_1_0 = (ctx->Extensions.ARB_multisample && + ctx->Extensions.ARB_multitexture && + ctx->Extensions.ARB_texture_compression && + ctx->Extensions.EXT_texture_env_add && + ctx->Extensions.ARB_texture_env_combine && + ctx->Extensions.ARB_texture_env_dot3); + /* OpenGL ES 1.1 is derived from OpenGL 1.5 */ + const GLboolean ver_1_1 = (ver_1_0 && + ctx->Extensions.EXT_point_parameters && + ctx->Extensions.SGIS_generate_mipmap && + ctx->Extensions.ARB_vertex_buffer_object); + if (ver_1_1) + return (const GLubyte *) es_1_1; + + if (!ver_1_0) + _mesa_problem(ctx, "Incomplete OpenGL ES 1.0 support."); + return (const GLubyte *) es_1_0; +} + + +static size_t +append_extension(char **str, const char *ext) +{ + char *s = *str; + size_t len = strlen(ext); + + if (s) { + memcpy(s, ext, len); + s[len++] = ' '; + s[len] = '\0'; + + *str += len; + } + else { + len++; + } + + return len; +} + + +static size_t +make_extension_string(const GLcontext *ctx, char *str) +{ + size_t len = 0; + + /* Core additions */ + len += append_extension(&str, "GL_OES_byte_coordinates"); + len += append_extension(&str, "GL_OES_fixed_point"); + len += append_extension(&str, "GL_OES_single_precision"); + len += append_extension(&str, "GL_OES_matrix_get"); + + /* 1.1 required extensions */ + len += append_extension(&str, "GL_OES_read_format"); + len += append_extension(&str, "GL_OES_compressed_paletted_texture"); + len += append_extension(&str, "GL_OES_point_size_array"); + len += append_extension(&str, "GL_OES_point_sprite"); + + /* 1.1 deprecated extensions */ + len += append_extension(&str, "GL_OES_query_matrix"); + + if (ctx->Extensions.EXT_blend_equation_separate) + len += append_extension(&str, "GL_OES_blend_equation_separate"); + if (ctx->Extensions.EXT_blend_func_separate) + len += append_extension(&str, "GL_OES_blend_func_separate"); + if (ctx->Extensions.EXT_blend_subtract) + len += append_extension(&str, "GL_OES_blend_subtract"); + + if (ctx->Extensions.EXT_stencil_wrap) + len += append_extension(&str, "GL_OES_stencil_wrap"); + + if (ctx->Extensions.ARB_texture_cube_map) + len += append_extension(&str, "GL_OES_texture_cube_map"); + if (ctx->Extensions.ARB_texture_env_crossbar) + len += append_extension(&str, "GL_OES_texture_env_crossbar"); + if (ctx->Extensions.ARB_texture_mirrored_repeat) + len += append_extension(&str, "GL_OES_texture_mirrored_repeat"); + + if (ctx->Extensions.ARB_framebuffer_object) { + len += append_extension(&str, "GL_OES_framebuffer_object"); + len += append_extension(&str, "GL_OES_depth24"); + len += append_extension(&str, "GL_OES_depth32"); + len += append_extension(&str, "GL_OES_fbo_render_mipmap"); + len += append_extension(&str, "GL_OES_rgb8_rgba8"); + len += append_extension(&str, "GL_OES_stencil1"); + len += append_extension(&str, "GL_OES_stencil4"); + len += append_extension(&str, "GL_OES_stencil8"); + } + + if (ctx->Extensions.EXT_vertex_array) + len += append_extension(&str, "GL_OES_element_index_uint"); + if (ctx->Extensions.ARB_vertex_buffer_object) + len += append_extension(&str, "GL_OES_mapbuffer"); + if (ctx->Extensions.EXT_texture_filter_anisotropic) + len += append_extension(&str, "GL_EXT_texture_filter_anisotropic"); + + if (ctx->Extensions.ARB_texture_non_power_of_two) + len += append_extension(&str, "GL_ARB_texture_non_power_of_two"); + if (ctx->Extensions.EXT_multi_draw_arrays) + len += append_extension(&str, "GL_EXT_multi_draw_arrays"); + + return len; +} + + +static const GLubyte * +compute_es_extensions(void) +{ + GET_CURRENT_CONTEXT(ctx); + + if (!ctx->Extensions.String) { + char *s; + unsigned int len; + + len = make_extension_string(ctx, NULL); + s = (char *) _mesa_malloc(len + 1); + if (!s) + return NULL; + make_extension_string(ctx, s); + ctx->Extensions.String = (const GLubyte *) s; + } + + return ctx->Extensions.String; +} + + +const GLubyte * GLAPIENTRY +_es_GetString(GLenum name) +{ + switch (name) { + case GL_VERSION: + return compute_es_version(); + case GL_EXTENSIONS: + return compute_es_extensions(); + default: + return _mesa_GetString(name); + } +} + + +void +_mesa_initialize_context_extra(GLcontext *ctx) +{ + /* nothing here */ +} |