From 2acdb116ced6b425e12bb6910c307d10b2939840 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Thu, 13 Nov 2008 16:47:47 +0000 Subject: gallium: add st_set_teximage_surface for EXT_texture_from_pixmap support. --- src/mesa/state_tracker/st_texture.c | 47 +++++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'src/mesa/state_tracker/st_texture.c') diff --git a/src/mesa/state_tracker/st_texture.c b/src/mesa/state_tracker/st_texture.c index 29b1634762..63cfe5fc16 100644 --- a/src/mesa/state_tracker/st_texture.c +++ b/src/mesa/state_tracker/st_texture.c @@ -32,6 +32,7 @@ #include "st_cb_fbo.h" #include "main/enums.h" #include "main/teximage.h" +#include "main/texstore.h" #undef Elements /* fix re-defined macro warning */ @@ -352,6 +353,52 @@ st_texture_image_copy(struct pipe_context *pipe, } } +/** Bind a pipe surface for use as a texture image */ +int +st_set_teximage(struct pipe_texture *pt, int target) +{ + GET_CURRENT_CONTEXT(ctx); + const GLuint unit = ctx->Texture.CurrentUnit; + struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; + struct gl_texture_object *texObj; + struct gl_texture_image *texImage; + struct st_texture_image *stImage; + int internalFormat; + + switch (pt->format) { + case PIPE_FORMAT_A8R8G8B8_UNORM: + internalFormat = GL_RGBA8; + break; + default: + return 0; + }; + + switch (target) { + case ST_TEXTURE_2D: + target = GL_TEXTURE_2D; + break; + case ST_TEXTURE_RECT: + target = GL_TEXTURE_RECTANGLE_ARB; + break; + default: + return 0; + } + + texObj = _mesa_select_tex_object(ctx, texUnit, target); + texImage = _mesa_get_tex_image(ctx, texObj, target, 0); + stImage = st_texture_image(texImage); + + _mesa_init_teximage_fields(ctx, GL_TEXTURE_2D, texImage, pt->width[0], + pt->height[0], 1, 0, internalFormat); + + texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, GL_RGBA, + GL_UNSIGNED_BYTE); + _mesa_set_fetch_functions(texImage, 2); + + pipe_texture_reference(&stImage->pt, pt); + + return 1; +} /** Redirect rendering into stfb's surface to a texture image */ int -- cgit v1.2.3