diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_pixel.c')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_pixel.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_pixel.c b/src/mesa/drivers/dri/intel/intel_pixel.c index fc0ac0b79c0..cbdda6b1f92 100644 --- a/src/mesa/drivers/dri/intel/intel_pixel.c +++ b/src/mesa/drivers/dri/intel/intel_pixel.c @@ -27,9 +27,12 @@ #include "main/enums.h" #include "main/state.h" +#include "main/bufferobj.h" #include "main/context.h" #include "main/enable.h" #include "main/matrix.h" +#include "main/texstate.h" +#include "main/varray.h" #include "main/viewport.h" #include "swrast/swrast.h" #include "shader/arbprogram.h" @@ -334,6 +337,85 @@ intel_meta_restore_fragment_program(struct intel_context *intel) _mesa_Disable(GL_FRAGMENT_PROGRAM_ARB); } +static const float default_texcoords[4][2] = { { 0.0, 0.0 }, + { 1.0, 0.0 }, + { 1.0, 1.0 }, + { 0.0, 1.0 } }; + +void +intel_meta_set_default_texrect(struct intel_context *intel) +{ + GLcontext *ctx = &intel->ctx; + struct gl_client_array *old_texcoord_array; + + intel->meta.saved_active_texture = ctx->Texture.CurrentUnit; + if (intel->meta.saved_array_vbo == NULL) { + _mesa_reference_buffer_object(ctx, &intel->meta.saved_array_vbo, + ctx->Array.ArrayBufferObj); + } + + old_texcoord_array = &ctx->Array.ArrayObj->TexCoord[0]; + intel->meta.saved_texcoord_type = old_texcoord_array->Type; + intel->meta.saved_texcoord_size = old_texcoord_array->Size; + intel->meta.saved_texcoord_stride = old_texcoord_array->Stride; + intel->meta.saved_texcoord_enable = old_texcoord_array->Enabled; + intel->meta.saved_texcoord_ptr = old_texcoord_array->Ptr; + _mesa_reference_buffer_object(ctx, &intel->meta.saved_texcoord_vbo, + old_texcoord_array->BufferObj); + + _mesa_ClientActiveTextureARB(GL_TEXTURE0); + + if (intel->meta.texcoord_vbo == NULL) { + GLuint vbo_name; + + _mesa_GenBuffersARB(1, &vbo_name); + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, vbo_name); + _mesa_BufferDataARB(GL_ARRAY_BUFFER_ARB, sizeof(default_texcoords), + default_texcoords, GL_STATIC_DRAW_ARB); + _mesa_reference_buffer_object(ctx, &intel->meta.texcoord_vbo, + ctx->Array.ArrayBufferObj); + } else { + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, + intel->meta.texcoord_vbo->Name); + } + _mesa_TexCoordPointer(2, GL_FLOAT, 2 * sizeof(GLfloat), NULL); + + _mesa_Enable(GL_TEXTURE_COORD_ARRAY); +} + +void +intel_meta_restore_texcoords(struct intel_context *intel) +{ + GLcontext *ctx = &intel->ctx; + + /* Restore the old TexCoordPointer */ + if (intel->meta.saved_texcoord_vbo) { + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, + intel->meta.saved_texcoord_vbo->Name); + _mesa_reference_buffer_object(ctx, &intel->meta.saved_texcoord_vbo, NULL); + } else { + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, 0); + } + + _mesa_TexCoordPointer(intel->meta.saved_texcoord_size, + intel->meta.saved_texcoord_type, + intel->meta.saved_texcoord_stride, + intel->meta.saved_texcoord_ptr); + if (!intel->meta.saved_texcoord_enable) + _mesa_Disable(GL_TEXTURE_COORD_ARRAY); + + _mesa_ClientActiveTextureARB(GL_TEXTURE0 + + intel->meta.saved_active_texture); + + if (intel->meta.saved_array_vbo) { + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, + intel->meta.saved_array_vbo->Name); + _mesa_reference_buffer_object(ctx, &intel->meta.saved_array_vbo, NULL); + } else { + _mesa_BindBufferARB(GL_ARRAY_BUFFER_ARB, 0); + } +} + void intelInitPixelFuncs(struct dd_function_table *functions) { @@ -355,5 +437,6 @@ intel_free_pixel_state(struct intel_context *intel) _mesa_reference_vertprog(ctx, &intel->meta.passthrough_vp, NULL); _mesa_reference_fragprog(ctx, &intel->meta.bitmap_fp, NULL); + _mesa_reference_buffer_object(ctx, &intel->meta.texcoord_vbo, NULL); } |