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Diffstat (limited to 'src/mesa/drivers/common/meta.c')
-rw-r--r--src/mesa/drivers/common/meta.c108
1 files changed, 84 insertions, 24 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index 9946bf1990..ba8be12571 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -52,6 +52,7 @@
#include "main/readpix.h"
#include "main/scissor.h"
#include "main/shaderapi.h"
+#include "main/shaderobj.h"
#include "main/state.h"
#include "main/stencil.h"
#include "main/texobj.h"
@@ -103,6 +104,8 @@ struct save_state
/** META_ALPHA_TEST */
GLboolean AlphaEnabled;
+ GLenum AlphaFunc;
+ GLclampf AlphaRef;
/** META_BLEND */
GLbitfield BlendEnabled;
@@ -143,7 +146,10 @@ struct save_state
struct gl_vertex_program *VertexProgram;
GLboolean FragmentProgramEnabled;
struct gl_fragment_program *FragmentProgram;
- GLuint Shader;
+ struct gl_shader_program *VertexShader;
+ struct gl_shader_program *GeometryShader;
+ struct gl_shader_program *FragmentShader;
+ struct gl_shader_program *ActiveShader;
/** META_STENCIL_TEST */
struct gl_stencil_attrib Stencil;
@@ -324,6 +330,8 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
if (state & META_ALPHA_TEST) {
save->AlphaEnabled = ctx->Color.AlphaEnabled;
+ save->AlphaFunc = ctx->Color.AlphaFunc;
+ save->AlphaRef = ctx->Color.AlphaRef;
if (ctx->Color.AlphaEnabled)
_mesa_set_enable(ctx, GL_ALPHA_TEST, GL_FALSE);
}
@@ -433,8 +441,15 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
}
if (ctx->Extensions.ARB_shader_objects) {
- save->Shader = ctx->Shader.CurrentProgram ?
- ctx->Shader.CurrentProgram->Name : 0;
+ _mesa_reference_shader_program(ctx, &save->VertexShader,
+ ctx->Shader.CurrentVertexProgram);
+ _mesa_reference_shader_program(ctx, &save->GeometryShader,
+ ctx->Shader.CurrentGeometryProgram);
+ _mesa_reference_shader_program(ctx, &save->FragmentShader,
+ ctx->Shader.CurrentFragmentProgram);
+ _mesa_reference_shader_program(ctx, &save->ActiveShader,
+ ctx->Shader.CurrentFragmentProgram);
+
_mesa_UseProgramObjectARB(0);
}
}
@@ -463,7 +478,8 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
_mesa_set_enable(ctx, GL_TEXTURE_1D, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_2D, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_3D, GL_FALSE);
- _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
+ if (ctx->Extensions.ARB_texture_cube_map)
+ _mesa_set_enable(ctx, GL_TEXTURE_CUBE_MAP, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_RECTANGLE, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_GEN_S, GL_FALSE);
_mesa_set_enable(ctx, GL_TEXTURE_GEN_T, GL_FALSE);
@@ -565,6 +581,7 @@ _mesa_meta_end(struct gl_context *ctx)
if (state & META_ALPHA_TEST) {
if (ctx->Color.AlphaEnabled != save->AlphaEnabled)
_mesa_set_enable(ctx, GL_ALPHA_TEST, save->AlphaEnabled);
+ _mesa_AlphaFunc(save->AlphaFunc, save->AlphaRef);
}
if (state & META_BLEND) {
@@ -664,9 +681,19 @@ _mesa_meta_end(struct gl_context *ctx)
_mesa_reference_fragprog(ctx, &save->FragmentProgram, NULL);
}
- if (ctx->Extensions.ARB_shader_objects) {
- _mesa_UseProgramObjectARB(save->Shader);
- }
+ if (ctx->Extensions.ARB_vertex_shader)
+ _mesa_use_shader_program(ctx, GL_VERTEX_SHADER, save->VertexShader);
+
+ if (ctx->Extensions.ARB_geometry_shader4)
+ _mesa_use_shader_program(ctx, GL_GEOMETRY_SHADER_ARB,
+ save->GeometryShader);
+
+ if (ctx->Extensions.ARB_fragment_shader)
+ _mesa_use_shader_program(ctx, GL_FRAGMENT_SHADER,
+ save->FragmentShader);
+
+ _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram,
+ save->ActiveShader);
}
if (state & META_STENCIL_TEST) {
@@ -1953,13 +1980,39 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
_mesa_meta_end(ctx);
}
+static GLboolean
+alpha_test_raster_color(struct gl_context *ctx)
+{
+ GLfloat alpha = ctx->Current.RasterColor[ACOMP];
+ GLfloat ref = ctx->Color.AlphaRef;
+
+ switch (ctx->Color.AlphaFunc) {
+ case GL_NEVER:
+ return GL_FALSE;
+ case GL_LESS:
+ return alpha < ref;
+ case GL_EQUAL:
+ return alpha == ref;
+ case GL_LEQUAL:
+ return alpha <= ref;
+ case GL_GREATER:
+ return alpha > ref;
+ case GL_NOTEQUAL:
+ return alpha != ref;
+ case GL_GEQUAL:
+ return alpha >= ref;
+ case GL_ALWAYS:
+ return GL_TRUE;
+ default:
+ assert(0);
+ return GL_FALSE;
+ }
+}
/**
- * Do glBitmap with a alpha texture quad. Use the alpha test to
- * cull the 'off' bits. If alpha test is already enabled, fall back
- * to swrast (should be a rare case).
- * A bitmap cache as in the gallium/mesa state tracker would
- * improve performance a lot.
+ * Do glBitmap with a alpha texture quad. Use the alpha test to cull
+ * the 'off' bits. A bitmap cache as in the gallium/mesa state
+ * tracker would improve performance a lot.
*/
void
_mesa_meta_Bitmap(struct gl_context *ctx,
@@ -1971,6 +2024,7 @@ _mesa_meta_Bitmap(struct gl_context *ctx,
struct temp_texture *tex = get_bitmap_temp_texture(ctx);
const GLenum texIntFormat = GL_ALPHA;
const struct gl_pixelstore_attrib unpackSave = *unpack;
+ GLubyte fg, bg;
struct vertex {
GLfloat x, y, z, s, t, r, g, b, a;
};
@@ -1982,7 +2036,7 @@ _mesa_meta_Bitmap(struct gl_context *ctx,
* Check if swrast fallback is needed.
*/
if (ctx->_ImageTransferState ||
- ctx->Color.AlphaEnabled ||
+ ctx->FragmentProgram._Enabled ||
ctx->Fog.Enabled ||
ctx->Texture._EnabledUnits ||
width > tex->MaxSize ||
@@ -1991,6 +2045,9 @@ _mesa_meta_Bitmap(struct gl_context *ctx,
return;
}
+ if (ctx->Color.AlphaEnabled && !alpha_test_raster_color(ctx))
+ return;
+
/* Most GL state applies to glBitmap (like blending, stencil, etc),
* but a there's a few things we need to override:
*/
@@ -2072,21 +2129,26 @@ _mesa_meta_Bitmap(struct gl_context *ctx,
_mesa_BufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0, sizeof(verts), verts);
}
+ /* choose different foreground/background alpha values */
+ CLAMPED_FLOAT_TO_UBYTE(fg, ctx->Current.RasterColor[ACOMP]);
+ bg = (fg > 127 ? 0 : 255);
+
bitmap1 = _mesa_map_pbo_source(ctx, &unpackSave, bitmap1);
if (!bitmap1) {
_mesa_meta_end(ctx);
return;
}
- bitmap8 = (GLubyte *) calloc(1, width * height);
+ bitmap8 = (GLubyte *) malloc(width * height);
if (bitmap8) {
+ memset(bitmap8, bg, width * height);
_mesa_expand_bitmap(width, height, &unpackSave, bitmap1,
- bitmap8, width, 0xff);
+ bitmap8, width, fg);
_mesa_set_enable(ctx, tex->Target, GL_TRUE);
_mesa_set_enable(ctx, GL_ALPHA_TEST, GL_TRUE);
- _mesa_AlphaFunc(GL_GREATER, 0.0);
+ _mesa_AlphaFunc(GL_NOTEQUAL, UBYTE_TO_FLOAT(bg));
setup_drawpix_texture(ctx, tex, newTex, texIntFormat, width, height,
GL_ALPHA, GL_UNSIGNED_BYTE, bitmap8);
@@ -2531,7 +2593,6 @@ copy_tex_image(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
- GLsizei postConvWidth = width, postConvHeight = height;
GLenum format, type;
GLint bpp;
void *buf;
@@ -2539,6 +2600,7 @@ copy_tex_image(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
texObj = _mesa_get_current_tex_object(ctx, target);
texImage = _mesa_get_tex_image(ctx, texObj, target, level);
+ /* Choose format/type for temporary image buffer */
format = _mesa_base_tex_format(ctx, internalFormat);
type = get_temp_image_type(ctx, format);
bpp = _mesa_bytes_per_pixel(format, type);
@@ -2570,12 +2632,8 @@ copy_tex_image(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
ctx->Driver.FreeTexImageData(ctx, texImage);
}
- _mesa_init_teximage_fields(ctx, target, texImage,
- postConvWidth, postConvHeight, 1,
- border, internalFormat);
-
- _mesa_choose_texture_format(ctx, texObj, texImage, target, level,
- internalFormat, GL_NONE, GL_NONE);
+ /* The texture's format was already chosen in _mesa_CopyTexImage() */
+ ASSERT(texImage->TexFormat != MESA_FORMAT_NONE);
/*
* Store texture data (with pixel transfer ops)
@@ -2628,7 +2686,8 @@ _mesa_meta_CopyTexImage2D(struct gl_context *ctx, GLenum target, GLint level,
* Have to be careful with locking and meta state for pixel transfer.
*/
static void
-copy_tex_sub_image(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
+copy_tex_sub_image(struct gl_context *ctx,
+ GLuint dims, GLenum target, GLint level,
GLint xoffset, GLint yoffset, GLint zoffset,
GLint x, GLint y,
GLsizei width, GLsizei height)
@@ -2642,6 +2701,7 @@ copy_tex_sub_image(struct gl_context *ctx, GLuint dims, GLenum target, GLint lev
texObj = _mesa_get_current_tex_object(ctx, target);
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ /* Choose format/type for temporary image buffer */
format = _mesa_get_format_base_format(texImage->TexFormat);
type = get_temp_image_type(ctx, format);
bpp = _mesa_bytes_per_pixel(format, type);
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-01 04:46:36 +0000