summaryrefslogtreecommitdiffstats
path: root/src/mesa/es/main/specials_es2.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/mesa/es/main/specials_es2.c')
-rw-r--r--src/mesa/es/main/specials_es2.c174
1 files changed, 174 insertions, 0 deletions
diff --git a/src/mesa/es/main/specials_es2.c b/src/mesa/es/main/specials_es2.c
new file mode 100644
index 00000000000..e11ade9b948
--- /dev/null
+++ b/src/mesa/es/main/specials_es2.c
@@ -0,0 +1,174 @@
+/**************************************************************************
+ *
+ * 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"
+
+
+const GLubyte * GLAPIENTRY _es_GetString(GLenum name);
+
+
+static const GLubyte *
+compute_es_version(void)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ static const char es_2_0[] = "OpenGL ES 2.0";
+ /* OpenGL ES 2.0 is derived from OpenGL 2.0 */
+ const GLboolean ver_2_0 = (ctx->Extensions.ARB_multisample &&
+ ctx->Extensions.ARB_multitexture &&
+ ctx->Extensions.ARB_texture_compression &&
+ ctx->Extensions.ARB_texture_cube_map &&
+ ctx->Extensions.ARB_texture_mirrored_repeat &&
+ ctx->Extensions.EXT_blend_color &&
+ ctx->Extensions.EXT_blend_func_separate &&
+ ctx->Extensions.EXT_blend_minmax &&
+ ctx->Extensions.EXT_blend_subtract &&
+ ctx->Extensions.EXT_stencil_wrap &&
+ ctx->Extensions.ARB_vertex_buffer_object &&
+ ctx->Extensions.ARB_shader_objects &&
+ ctx->Extensions.ARB_vertex_shader &&
+ ctx->Extensions.ARB_fragment_shader &&
+ ctx->Extensions.ARB_texture_non_power_of_two &&
+ ctx->Extensions.EXT_blend_equation_separate);
+ if (!ver_2_0)
+ _mesa_problem(ctx, "Incomplete OpenGL ES 2.0 support.");
+ return (const GLubyte *) es_2_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;
+
+ len += append_extension(&str, "GL_OES_compressed_paletted_texture");
+
+ if (ctx->Extensions.ARB_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");
+ }
+
+ 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_texture3D)
+ len += append_extension(&str, "GL_OES_texture_3D");
+ if (ctx->Extensions.ARB_texture_non_power_of_two)
+ len += append_extension(&str, "GL_OES_texture_npot");
+ if (ctx->Extensions.EXT_texture_filter_anisotropic)
+ len += append_extension(&str, "GL_EXT_texture_filter_anisotropic");
+
+ len += append_extension(&str, "GL_EXT_texture_type_2_10_10_10_REV");
+ if (ctx->Extensions.ARB_depth_texture)
+ len += append_extension(&str, "GL_OES_depth_texture");
+ if (ctx->Extensions.EXT_packed_depth_stencil)
+ len += append_extension(&str, "GL_OES_packed_depth_stencil");
+ if (ctx->Extensions.ARB_fragment_shader)
+ len += append_extension(&str, "GL_OES_standard_derivatives");
+
+ if (ctx->Extensions.EXT_texture_compression_s3tc)
+ len += append_extension(&str, "GL_EXT_texture_compression_dxt1");
+ if (ctx->Extensions.EXT_blend_minmax)
+ len += append_extension(&str, "GL_EXT_blend_minmax");
+ 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_SHADING_LANGUAGE_VERSION:
+ return (const GLubyte *) "OpenGL ES GLSL ES 1.0.16";
+ case GL_EXTENSIONS:
+ return compute_es_extensions();
+ default:
+ return _mesa_GetString(name);
+ }
+}
+
+
+void
+_mesa_initialize_context_extra(GLcontext *ctx)
+{
+ ctx->FragmentProgram._MaintainTexEnvProgram = GL_TRUE;
+ ctx->VertexProgram._MaintainTnlProgram = GL_TRUE;
+
+ ctx->Point.PointSprite = GL_TRUE; /* always on for ES 2.x */
+}