[Mesa-dev] [PATCH 6/7] main: Add check_texture_buffer_target.
Laura Ekstrand
laura at jlekstrand.net
Wed Mar 4 16:41:24 PST 2015
Creates a shared function to ensure that texture buffer target is
GL_TEXTURE_BUFFER. Helps to clean up the Tex[ture]Buffer[Range] functions.
v2: Review from Anuj Phogat
- Split rebase of Tex[ture]Buffer[Range]
---
src/mesa/main/teximage.c | 39 ++++++++++++++++++++++++++++-----------
1 file changed, 28 insertions(+), 11 deletions(-)
diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index d9e2c66..2b981ff 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -5290,6 +5290,25 @@ _mesa_texture_buffer_range(struct gl_context *ctx,
/**
+ * Make sure the texture buffer target is GL_TEXTURE_BUFFER.
+ * Return true if it is, and return false if it is not
+ * (and throw INVALID ENUM as dictated in the OpenGL 4.5
+ * core spec, 02.02.2015, PDF page 245).
+ */
+static bool
+check_texture_buffer_target(struct gl_context *ctx, GLenum target,
+ const char *caller)
+{
+ if (target != GL_TEXTURE_BUFFER_ARB) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(texture target is not GL_TEXTURE_BUFFER)", caller);
+ return false;
+ }
+ else
+ return true;
+}
+
+/**
* Check for errors related to the texture buffer range.
* Return false if errors are found, true if none are found.
*/
@@ -5348,11 +5367,11 @@ _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
GET_CURRENT_CONTEXT(ctx);
- /* Need to catch this before it gets to _mesa_get_current_tex_object */
- if (target != GL_TEXTURE_BUFFER_ARB) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
+ /* Need to catch a bad target before it gets to
+ * _mesa_get_current_tex_object.
+ */
+ if (!check_texture_buffer_target(ctx, target, "glTexBuffer"))
return;
- }
if (buffer) {
bufObj = _mesa_lookup_bufferobj_err(ctx, buffer, "glTexBuffer");
@@ -5380,11 +5399,11 @@ _mesa_TexBufferRange(GLenum target, GLenum internalFormat, GLuint buffer,
GET_CURRENT_CONTEXT(ctx);
- /* Need to catch this before it gets to _mesa_get_current_tex_object */
- if (target != GL_TEXTURE_BUFFER_ARB) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTexBufferRange(target)");
+ /* Need to catch a bad target before it gets to
+ * _mesa_get_current_tex_object.
+ */
+ if (!check_texture_buffer_target(ctx, target, "glTexBufferRange"))
return;
- }
if (buffer) {
bufObj = _mesa_lookup_bufferobj_err(ctx, buffer, "glTexBufferRange");
@@ -5437,10 +5456,8 @@ _mesa_TextureBuffer(GLuint texture, GLenum internalFormat, GLuint buffer)
if (!texObj)
return;
- if (texObj->Target != GL_TEXTURE_BUFFER_ARB) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glTextureBuffer(target)");
+ if (!check_texture_buffer_target(ctx, texObj->Target, "glTextureBuffer"))
return;
- }
_mesa_texture_buffer_range(ctx, texObj, internalFormat,
bufObj, 0, buffer ? -1 : 0, "glTextureBuffer");
--
2.1.0
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