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-rw-r--r--src/mesa/main/depthstencil.c155
-rw-r--r--src/mesa/main/depthstencil.h16
2 files changed, 0 insertions, 171 deletions
diff --git a/src/mesa/main/depthstencil.c b/src/mesa/main/depthstencil.c
index 40d6c9612a2..af5c12f67fc 100644
--- a/src/mesa/main/depthstencil.c
+++ b/src/mesa/main/depthstencil.c
@@ -957,158 +957,3 @@ _mesa_new_s8_renderbuffer_wrapper(struct gl_context *ctx, struct gl_renderbuffer
return s8rb;
}
-
-
-
-/**
- ** The following functions are useful for hardware drivers that only
- ** implement combined depth/stencil buffers.
- ** The GL_EXT_framebuffer_object extension allows indepedent depth and
- ** stencil buffers to be used in any combination.
- ** Therefore, we sometimes have to merge separate depth and stencil
- ** renderbuffers into a single depth+stencil renderbuffer. And sometimes
- ** we have to split combined depth+stencil renderbuffers into separate
- ** renderbuffers.
- **/
-
-
-/**
- * Extract stencil values from the combined depth/stencil renderbuffer, storing
- * the values into a separate stencil renderbuffer.
- * \param dsRb the source depth/stencil renderbuffer
- * \param stencilRb the destination stencil renderbuffer
- * (either 8-bit or 32-bit)
- */
-void
-_mesa_extract_stencil(struct gl_context *ctx,
- struct gl_renderbuffer *dsRb,
- struct gl_renderbuffer *stencilRb)
-{
- GLuint row, width, height;
-
- ASSERT(dsRb);
- ASSERT(stencilRb);
-
- ASSERT(dsRb->Format == MESA_FORMAT_Z24_S8);
- ASSERT(dsRb->DataType == GL_UNSIGNED_INT_24_8_EXT);
- ASSERT(stencilRb->Format == MESA_FORMAT_Z24_S8 ||
- stencilRb->Format == MESA_FORMAT_S8);
- ASSERT(dsRb->Width == stencilRb->Width);
- ASSERT(dsRb->Height == stencilRb->Height);
-
- width = dsRb->Width;
- height = dsRb->Height;
-
- for (row = 0; row < height; row++) {
- GLuint depthStencil[MAX_WIDTH];
- dsRb->GetRow(ctx, dsRb, width, 0, row, depthStencil);
- if (stencilRb->Format == MESA_FORMAT_S8) {
- /* 8bpp stencil */
- GLubyte stencil[MAX_WIDTH];
- GLuint i;
- for (i = 0; i < width; i++) {
- stencil[i] = depthStencil[i] & 0xff;
- }
- stencilRb->PutRow(ctx, stencilRb, width, 0, row, stencil, NULL);
- }
- else {
- /* 32bpp stencil */
- /* the 24 depth bits will be ignored */
- ASSERT(stencilRb->Format == MESA_FORMAT_Z24_S8);
- ASSERT(stencilRb->DataType == GL_UNSIGNED_INT_24_8_EXT);
- stencilRb->PutRow(ctx, stencilRb, width, 0, row, depthStencil, NULL);
- }
- }
-}
-
-
-/**
- * Copy stencil values from a stencil renderbuffer into a combined
- * depth/stencil renderbuffer.
- * \param dsRb the destination depth/stencil renderbuffer
- * \param stencilRb the source stencil buffer (either 8-bit or 32-bit)
- */
-void
-_mesa_insert_stencil(struct gl_context *ctx,
- struct gl_renderbuffer *dsRb,
- struct gl_renderbuffer *stencilRb)
-{
- GLuint row, width, height;
-
- ASSERT(dsRb);
- ASSERT(stencilRb);
-
- ASSERT(dsRb->Format == MESA_FORMAT_Z24_S8);
- ASSERT(dsRb->DataType == GL_UNSIGNED_INT_24_8_EXT);
- ASSERT(stencilRb->Format == MESA_FORMAT_Z24_S8 ||
- stencilRb->Format == MESA_FORMAT_S8);
-
- ASSERT(dsRb->Width == stencilRb->Width);
- ASSERT(dsRb->Height == stencilRb->Height);
-
- width = dsRb->Width;
- height = dsRb->Height;
-
- for (row = 0; row < height; row++) {
- GLuint depthStencil[MAX_WIDTH];
-
- dsRb->GetRow(ctx, dsRb, width, 0, row, depthStencil);
-
- if (stencilRb->Format == MESA_FORMAT_S8) {
- /* 8bpp stencil */
- GLubyte stencil[MAX_WIDTH];
- GLuint i;
- stencilRb->GetRow(ctx, stencilRb, width, 0, row, stencil);
- for (i = 0; i < width; i++) {
- depthStencil[i] = (depthStencil[i] & 0xffffff00) | stencil[i];
- }
- }
- else {
- /* 32bpp stencil buffer */
- GLuint stencil[MAX_WIDTH], i;
- ASSERT(stencilRb->Format == MESA_FORMAT_Z24_S8);
- ASSERT(stencilRb->DataType == GL_UNSIGNED_INT_24_8_EXT);
- stencilRb->GetRow(ctx, stencilRb, width, 0, row, stencil);
- for (i = 0; i < width; i++) {
- depthStencil[i]
- = (depthStencil[i] & 0xffffff00) | (stencil[i] & 0xff);
- }
- }
-
- dsRb->PutRow(ctx, dsRb, width, 0, row, depthStencil, NULL);
- }
-}
-
-
-/**
- * Convert the stencil buffer from 8bpp to 32bpp depth/stencil.
- * \param stencilRb the stencil renderbuffer to promote
- */
-void
-_mesa_promote_stencil(struct gl_context *ctx, struct gl_renderbuffer *stencilRb)
-{
- const GLsizei width = stencilRb->Width;
- const GLsizei height = stencilRb->Height;
- GLubyte *data;
- GLint i, j, k;
-
- ASSERT(stencilRb->Format == MESA_FORMAT_S8);
- ASSERT(stencilRb->Data);
-
- data = (GLubyte *) stencilRb->Data;
- stencilRb->Data = NULL;
- stencilRb->AllocStorage(ctx, stencilRb, GL_DEPTH24_STENCIL8_EXT,
- width, height);
-
- ASSERT(stencilRb->DataType == GL_UNSIGNED_INT_24_8_EXT);
-
- k = 0;
- for (i = 0; i < height; i++) {
- GLuint depthStencil[MAX_WIDTH];
- for (j = 0; j < width; j++) {
- depthStencil[j] = data[k++];
- }
- stencilRb->PutRow(ctx, stencilRb, width, 0, i, depthStencil, NULL);
- }
- free(data);
-}
diff --git a/src/mesa/main/depthstencil.h b/src/mesa/main/depthstencil.h
index b47a2e482c2..c3871d805c7 100644
--- a/src/mesa/main/depthstencil.h
+++ b/src/mesa/main/depthstencil.h
@@ -43,20 +43,4 @@ _mesa_new_s8_renderbuffer_wrapper(struct gl_context *ctx,
struct gl_renderbuffer *dsrb);
-extern void
-_mesa_extract_stencil(struct gl_context *ctx,
- struct gl_renderbuffer *dsRb,
- struct gl_renderbuffer *stencilRb);
-
-
-extern void
-_mesa_insert_stencil(struct gl_context *ctx,
- struct gl_renderbuffer *dsRb,
- struct gl_renderbuffer *stencilRb);
-
-
-extern void
-_mesa_promote_stencil(struct gl_context *ctx, struct gl_renderbuffer *stencilRb);
-
-
#endif /* DEPTHSTENCIL_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 07:36:27 +0000