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-rw-r--r--src/mesa/main/teximage.c40
-rw-r--r--src/mesa/main/texstore.c101
2 files changed, 93 insertions, 48 deletions
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index d4d023acda..c19e5b0a5a 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -2090,14 +2090,6 @@ _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
ASSERT(texImage->TexFormat);
- /* If driver didn't explicitly set this, use the defaults */
- if (!texImage->FetchTexelc)
- texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
- if (!texImage->FetchTexelf)
- texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
- ASSERT(texImage->FetchTexelc);
- ASSERT(texImage->FetchTexelf);
-
/* state update */
texObj->Complete = GL_FALSE;
ctx->NewState |= _NEW_TEXTURE;
@@ -2189,14 +2181,6 @@ _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
ASSERT(texImage->TexFormat);
- /* If driver didn't explicitly set these, use the defaults */
- if (!texImage->FetchTexelc)
- texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
- if (!texImage->FetchTexelf)
- texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
- ASSERT(texImage->FetchTexelc);
- ASSERT(texImage->FetchTexelf);
-
/* state update */
texObj->Complete = GL_FALSE;
ctx->NewState |= _NEW_TEXTURE;
@@ -2284,14 +2268,6 @@ _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
ASSERT(texImage->TexFormat);
- /* If driver didn't explicitly set these, use the defaults */
- if (!texImage->FetchTexelc)
- texImage->FetchTexelc = texImage->TexFormat->FetchTexel3D;
- if (!texImage->FetchTexelf)
- texImage->FetchTexelf = texImage->TexFormat->FetchTexel3Df;
- ASSERT(texImage->FetchTexelc);
- ASSERT(texImage->FetchTexelf);
-
/* state update */
texObj->Complete = GL_FALSE;
ctx->NewState |= _NEW_TEXTURE;
@@ -2519,14 +2495,6 @@ _mesa_CopyTexImage1D( GLenum target, GLint level,
ASSERT(texImage->TexFormat);
- /* If driver didn't explicitly set these, use the defaults */
- if (!texImage->FetchTexelc)
- texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
- if (!texImage->FetchTexelf)
- texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
- ASSERT(texImage->FetchTexelc);
- ASSERT(texImage->FetchTexelf);
-
/* state update */
texObj->Complete = GL_FALSE;
ctx->NewState |= _NEW_TEXTURE;
@@ -2581,14 +2549,6 @@ _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
ASSERT(texImage->TexFormat);
- /* If driver didn't explicitly set these, use the defaults */
- if (!texImage->FetchTexelc)
- texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
- if (!texImage->FetchTexelf)
- texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
- ASSERT(texImage->FetchTexelc);
- ASSERT(texImage->FetchTexelf);
-
/* state update */
texObj->Complete = GL_FALSE;
ctx->NewState |= _NEW_TEXTURE;
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c
index a2bd898969..53be319ad7 100644
--- a/src/mesa/main/texstore.c
+++ b/src/mesa/main/texstore.c
@@ -2172,6 +2172,95 @@ _mesa_unmap_teximage_pbo(GLcontext *ctx,
}
+
+/**
+ * Adaptor for fetching a GLchan texel from a float-valued texture.
+ */
+static void
+FetchTexelFloatToChan( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLchan *texelOut )
+{
+ GLfloat temp[4];
+ ASSERT(texImage->FetchTexelf);
+ texImage->FetchTexelf(texImage, i, j, k, temp);
+ if (texImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT) {
+ /* just one channel */
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]);
+ }
+ else {
+ /* four channels */
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[0], temp[0]);
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[1], temp[1]);
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[2], temp[2]);
+ UNCLAMPED_FLOAT_TO_CHAN(texelOut[3], temp[3]);
+ }
+}
+
+
+/**
+ * Adaptor for fetching a float texel from a GLchan-valued texture.
+ */
+static void
+FetchTexelChanToFloat( const struct gl_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texelOut )
+{
+ GLchan temp[4];
+ ASSERT(texImage->FetchTexelc);
+ texImage->FetchTexelc(texImage, i, j, k, temp);
+ if (texImage->TexFormat->BaseFormat == GL_DEPTH_COMPONENT) {
+ /* just one channel */
+ texelOut[0] = CHAN_TO_FLOAT(temp[0]);
+ }
+ else {
+ /* four channels */
+ texelOut[0] = CHAN_TO_FLOAT(temp[0]);
+ texelOut[1] = CHAN_TO_FLOAT(temp[1]);
+ texelOut[2] = CHAN_TO_FLOAT(temp[2]);
+ texelOut[3] = CHAN_TO_FLOAT(temp[3]);
+ }
+}
+
+
+/**
+ * Initialize the texture image's FetchTexelc and FetchTexelf methods.
+ */
+static void
+set_fetch_functions(struct gl_texture_image *texImage, GLuint dims)
+{
+ ASSERT(dims == 1 || dims == 2 || dims == 3);
+ ASSERT(texImage->TexFormat);
+
+ switch (dims) {
+ case 1:
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
+ break;
+ case 2:
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
+ break;
+ case 3:
+ texImage->FetchTexelc = texImage->TexFormat->FetchTexel3D;
+ texImage->FetchTexelf = texImage->TexFormat->FetchTexel3Df;
+ break;
+ default:
+ ;
+ }
+
+ /* now check if we need to use a float/chan adaptor */
+ if (!texImage->FetchTexelc) {
+ texImage->FetchTexelc = FetchTexelFloatToChan;
+ }
+ else if (!texImage->FetchTexelf) {
+ texImage->FetchTexelf = FetchTexelChanToFloat;
+ }
+
+
+ ASSERT(texImage->FetchTexelc);
+ ASSERT(texImage->FetchTexelf);
+}
+
+
/*
* This is the software fallback for Driver.TexImage1D()
* and Driver.CopyTexImage1D().
@@ -2199,8 +2288,7 @@ _mesa_store_teximage1d(GLcontext *ctx, GLenum target, GLint level,
texImage->TexFormat = ctx->Driver.ChooseTextureFormat(ctx, internalFormat,
format, type);
assert(texImage->TexFormat);
- texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
- texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
+ set_fetch_functions(texImage, 1);
/* allocate memory */
if (texImage->IsCompressed)
@@ -2285,8 +2373,7 @@ _mesa_store_teximage2d(GLcontext *ctx, GLenum target, GLint level,
texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
internalFormat, format, type);
assert(texImage->TexFormat);
- texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
- texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
+ set_fetch_functions(texImage, 2);
texelBytes = texImage->TexFormat->TexelBytes;
@@ -2365,8 +2452,7 @@ _mesa_store_teximage3d(GLcontext *ctx, GLenum target, GLint level,
texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
internalFormat, format, type);
assert(texImage->TexFormat);
- texImage->FetchTexelc = texImage->TexFormat->FetchTexel3D;
- texImage->FetchTexelf = texImage->TexFormat->FetchTexel3Df;
+ set_fetch_functions(texImage, 3);
texelBytes = texImage->TexFormat->TexelBytes;
@@ -2629,8 +2715,7 @@ _mesa_store_compressed_teximage2d(GLcontext *ctx, GLenum target, GLint level,
texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
internalFormat, 0, 0);
assert(texImage->TexFormat);
- texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
- texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
+ set_fetch_functions(texImage, 2);
/* allocate storage */
texImage->Data = _mesa_alloc_texmemory(imageSize);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-14 04:38:29 +0000