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intel: Speed up glDrawPixels(GL_ALPHA) by using an alpha texture format. (cherry picked from commit 0b63f6449e)

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Eric Anholt 2009-02-09 14:55:31 +01:00 • committed by Ian Romanick
parent fb1d2ed34c
commit 4d0a7b33c5
1 changed files with 6 additions and 5 deletions
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11
src/mesa/drivers/dri/intel/intel_pixel_draw.c
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@ -73,6 +73,7 @@ intel_texture_drawpixels(GLcontext * ctx,
GLfloat texcoords[4][2];
GLfloat z;
GLint old_active_texture;
GLenum internalFormat;
/* We're going to mess with texturing with no regard to existing texture
* state, so if there is some set up we have to bail.
@ -134,11 +135,11 @@ intel_texture_drawpixels(GLcontext * ctx,
_mesa_TexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
_mesa_TexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
_mesa_TexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
/*
_mesa_TexEnvf(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_REPLACE);
_mesa_TexEnvf(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_REPLACE);
*/
_mesa_TexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, format,
if (type == GL_ALPHA)
internalFormat = GL_ALPHA;
else
internalFormat = GL_RGBA;
_mesa_TexImage2D(GL_TEXTURE_2D, 0, internalFormat, width, height, 0, format,
type, pixels);
intel_meta_set_passthrough_transform(intel);