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-rw-r--r--src/mesa/drivers/common/meta.c120
-rw-r--r--src/mesa/drivers/common/meta.h1
2 files changed, 96 insertions, 25 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index 8ed6479e34..ec0da71fb9 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -43,6 +43,7 @@
#include "main/macros.h"
#include "main/matrix.h"
#include "main/polygon.h"
+#include "main/readpix.h"
#include "main/scissor.h"
#include "main/shaders.h"
#include "main/stencil.h"
@@ -83,8 +84,8 @@ struct save_state
/** META_FOG */
GLboolean Fog;
- /** META_PIXELSTORE */
- /* XXX / TO-DO */
+ /** META_PIXEL_STORE */
+ struct gl_pixelstore_attrib Pack, Unpack;
/** META_RASTERIZATION */
GLenum FrontPolygonMode, BackPolygonMode;
@@ -143,6 +144,7 @@ struct blit_state
{
GLuint ArrayObj;
GLuint VBO;
+ GLuint DepthFP;
};
@@ -244,29 +246,26 @@ _mesa_meta_free(GLcontext *ctx)
* still get freed by _mesa_free_context_data().
*/
- if (meta->TempTex.TexObj) {
- _mesa_DeleteTextures(1, &meta->TempTex.TexObj);
- }
+ _mesa_DeleteTextures(1, &meta->TempTex.TexObj);
- if (meta->Blit.VBO) {
- _mesa_DeleteBuffersARB(1, & meta->Blit.VBO);
- _mesa_DeleteVertexArraysAPPLE(1, &meta->Blit.ArrayObj);
- }
+ /* glBlitFramebuffer */
+ _mesa_DeleteBuffersARB(1, & meta->Blit.VBO);
+ _mesa_DeleteVertexArraysAPPLE(1, &meta->Blit.ArrayObj);
+ _mesa_DeletePrograms(1, &meta->Blit.DepthFP);
- if (meta->Clear.VBO) {
- _mesa_DeleteBuffersARB(1, & meta->Clear.VBO);
- _mesa_DeleteVertexArraysAPPLE(1, &meta->Clear.ArrayObj);
- }
+ /* glClear */
+ _mesa_DeleteBuffersARB(1, & meta->Clear.VBO);
+ _mesa_DeleteVertexArraysAPPLE(1, &meta->Clear.ArrayObj);
- if (meta->CopyPix.VBO) {
- _mesa_DeleteBuffersARB(1, & meta->CopyPix.VBO);
- _mesa_DeleteVertexArraysAPPLE(1, &meta->CopyPix.ArrayObj);
- }
+ /* glCopyPixels */
+ _mesa_DeleteBuffersARB(1, & meta->CopyPix.VBO);
+ _mesa_DeleteVertexArraysAPPLE(1, &meta->CopyPix.ArrayObj);
- if (meta->DrawPix.VBO) {
- _mesa_DeleteBuffersARB(1, & meta->DrawPix.VBO);
- _mesa_DeleteVertexArraysAPPLE(1, &meta->DrawPix.ArrayObj);
- }
+ /* glDrawPixels */
+ _mesa_DeleteBuffersARB(1, & meta->DrawPix.VBO);
+ _mesa_DeleteVertexArraysAPPLE(1, &meta->DrawPix.ArrayObj);
+ _mesa_DeletePrograms(1, &meta->DrawPix.DepthFP);
+ _mesa_DeletePrograms(1, &meta->DrawPix.StencilFP);
}
_mesa_free(ctx->Meta);
@@ -324,6 +323,13 @@ _mesa_meta_begin(GLcontext *ctx, GLbitfield state)
_mesa_set_enable(ctx, GL_FOG, GL_FALSE);
}
+ if (state & META_PIXEL_STORE) {
+ save->Pack = ctx->Pack;
+ save->Unpack = ctx->Unpack;
+ ctx->Pack = ctx->DefaultPacking;
+ ctx->Unpack = ctx->DefaultPacking;
+ }
+
if (state & META_RASTERIZATION) {
save->FrontPolygonMode = ctx->Polygon.FrontMode;
save->BackPolygonMode = ctx->Polygon.BackMode;
@@ -514,6 +520,11 @@ _mesa_meta_end(GLcontext *ctx)
_mesa_set_enable(ctx, GL_FOG, save->Fog);
}
+ if (state & META_PIXEL_STORE) {
+ ctx->Pack = save->Pack;
+ ctx->Unpack = save->Unpack;
+ }
+
if (state & META_RASTERIZATION) {
_mesa_PolygonMode(GL_FRONT, save->FrontPolygonMode);
_mesa_PolygonMode(GL_BACK, save->BackPolygonMode);
@@ -861,6 +872,38 @@ setup_drawpix_texture(struct temp_texture *tex,
/**
+ * One-time init for drawing depth pixels.
+ */
+static void
+init_blit_depth_pixels(GLcontext *ctx)
+{
+ static const char *program =
+ "!!ARBfp1.0\n"
+ "TEX result.depth, fragment.texcoord[0], texture[0], %s; \n"
+ "END \n";
+ char program2[200];
+ struct blit_state *blit = &ctx->Meta->Blit;
+ struct temp_texture *tex = get_temp_texture(ctx);
+ const char *texTarget;
+
+ assert(blit->DepthFP == 0);
+
+ /* replace %s with "RECT" or "2D" */
+ assert(strlen(program) + 4 < sizeof(program2));
+ if (tex->Target == GL_TEXTURE_RECTANGLE)
+ texTarget = "RECT";
+ else
+ texTarget = "2D";
+ _mesa_snprintf(program2, sizeof(program2), program, texTarget);
+
+ _mesa_GenPrograms(1, &blit->DepthFP);
+ _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, blit->DepthFP);
+ _mesa_ProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+ strlen(program2), (const GLubyte *) program2);
+}
+
+
+/**
* Meta implementation of ctx->Driver.BlitFramebuffer() in terms
* of texture mapping and polygon rendering.
*/
@@ -964,9 +1007,36 @@ _mesa_meta_blit_framebuffer(GLcontext *ctx,
_mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
mask &= ~GL_COLOR_BUFFER_BIT;
}
+
if (mask & GL_DEPTH_BUFFER_BIT) {
- /* XXX todo (need fragment shader) */
+ GLuint *tmp = (GLuint *) _mesa_malloc(srcW * srcH * sizeof(GLuint));
+ if (tmp) {
+ if (!blit->DepthFP)
+ init_blit_depth_pixels(ctx);
+
+ /* maybe change tex format here */
+ newTex = alloc_texture(tex, srcW, srcH, GL_DEPTH_COMPONENT);
+
+ _mesa_ReadPixels(srcX, srcY, srcW, srcH,
+ GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp);
+
+ setup_drawpix_texture(tex, newTex, GL_DEPTH_COMPONENT, srcW, srcH,
+ GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, tmp);
+
+ _mesa_BindProgram(GL_FRAGMENT_PROGRAM_ARB, blit->DepthFP);
+ _mesa_set_enable(ctx, GL_FRAGMENT_PROGRAM_ARB, GL_TRUE);
+ _mesa_ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
+ _mesa_set_enable(ctx, GL_DEPTH_TEST, GL_TRUE);
+ _mesa_DepthFunc(GL_ALWAYS);
+ _mesa_DepthMask(GL_TRUE);
+
+ _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4);
+ mask &= ~GL_DEPTH_BUFFER_BIT;
+
+ _mesa_free(tmp);
+ }
}
+
if (mask & GL_STENCIL_BUFFER_BIT) {
/* XXX can't easily do stencil */
}
@@ -975,8 +1045,7 @@ _mesa_meta_blit_framebuffer(GLcontext *ctx,
_mesa_meta_end(ctx);
- /* XXX, TO-DO: try to handle these cases above! */
- if (mask & (GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT)) {
+ if (mask) {
_swrast_BlitFramebuffer(ctx, srcX0, srcY0, srcX1, srcY1,
dstX0, dstY0, dstX1, dstY1, mask, filter);
}
@@ -991,7 +1060,8 @@ _mesa_meta_clear(GLcontext *ctx, GLbitfield buffers)
{
struct clear_state *clear = &ctx->Meta->Clear;
GLfloat verts[4][7]; /* four verts of X,Y,Z,R,G,B,A */
- GLbitfield metaSave = META_ALL - META_SCISSOR; /* all but scissor */
+ /* save all state but scissor, pixel pack/unpack */
+ GLbitfield metaSave = META_ALL - META_SCISSOR - META_PIXEL_STORE;
if (buffers & BUFFER_BITS_COLOR) {
/* if clearing color buffers, don't save/restore colormask */
diff --git a/src/mesa/drivers/common/meta.h b/src/mesa/drivers/common/meta.h
index a9c5f98043..b03b64c48a 100644
--- a/src/mesa/drivers/common/meta.h
+++ b/src/mesa/drivers/common/meta.h
@@ -45,6 +45,7 @@
#define META_TEXTURE 0x400
#define META_VERTEX 0x800
#define META_VIEWPORT 0x1000
+#define META_PIXEL_STORE 0x2000
#define META_ALL ~0x0
/*@}*/
generated by cgit v1.2.3 (git 2.51.0) at 2025-10-31 04:08:55 +0000