[Mesa-dev] [PATCH V2] mesa: Use location VERT_ATTRIB_GENERIC0 for vertex attribute 0
Ian Romanick
idr at freedesktop.org
Fri Apr 25 18:30:28 PDT 2014
On 04/25/2014 11:23 AM, Anuj Phogat wrote:
> In OpenGL 3.1 attribute 0 becomes non-magic, just like in
> OpenGL ES 2.0. Earlier versions of OpenGL used attribute 0
> exclusively for vertex position.
>
> V2: Add a utility function _mesa_attr_zero_aliases_vertex() in
> varray.h
>
> Fixes 4 Khronos OpenGL CTS failures:
> glGetVertexAttrib
> depth24_basic
> depth24_precision
> rgb8_rgba8_rgb
>
> Cc: <mesa-stable at lists.freedesktop.org>
> Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
Apologies for not replying to your previous reply (before sending the
updated patch). I have two nits below. With those fixed,
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
> ---
> src/mesa/main/varray.c | 8 +-------
> src/mesa/main/varray.h | 14 ++++++++++++++
> src/mesa/vbo/vbo_attrib_tmp.h | 45 ++++++++++++++++++++++---------------------
> 3 files changed, 38 insertions(+), 29 deletions(-)
>
> diff --git a/src/mesa/main/varray.c b/src/mesa/main/varray.c
> index 66a3ef1..81f71f8 100644
> --- a/src/mesa/main/varray.c
> +++ b/src/mesa/main/varray.c
> @@ -784,13 +784,7 @@ static const GLfloat *
> get_current_attrib(struct gl_context *ctx, GLuint index, const char *function)
> {
> if (index == 0) {
> - /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES
> - * 2.0. Note that we cannot just check for API_OPENGL_CORE here because
> - * that will erroneously allow this usage in a 3.0 forward-compatible
> - * context too.
> - */
> - if ((ctx->API != API_OPENGL_CORE || ctx->Version < 31)
> - && ctx->API != API_OPENGLES2) {
> + if (_mesa_attr_zero_aliases_vertex(ctx)) {
> _mesa_error(ctx, GL_INVALID_OPERATION, "%s(index==0)", function);
> return NULL;
> }
> diff --git a/src/mesa/main/varray.h b/src/mesa/main/varray.h
> index bc820ed..555eb28 100644
> --- a/src/mesa/main/varray.h
> +++ b/src/mesa/main/varray.h
> @@ -106,6 +106,20 @@ _mesa_update_client_array(struct gl_context *ctx,
> _mesa_reference_buffer_object(ctx, &dst->BufferObj, binding->BufferObj);
> }
>
> +static inline bool
> +_mesa_attr_zero_aliases_vertex(struct gl_context *ctx) {
The { goes on its own line.
> + const bool is_forward_compatible_context =
> + ctx->Const.ContextFlags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT;
Add a blank line here.
> + /* In OpenGL 3.1 attribute 0 becomes non-magic, just like in OpenGL ES
> + * 2.0. Note that we cannot just check for API_OPENGL_COMPAT here because
> + * that will erroneously allow this usage in a 3.0 forward-compatible
> + * context too.
> + */
> + return (ctx->API == API_OPENGLES
> + || (ctx->API == API_OPENGL_COMPAT
> + && !is_forward_compatible_context));
> +}
> +
> extern void GLAPIENTRY
> _mesa_VertexPointer(GLint size, GLenum type, GLsizei stride,
> const GLvoid *ptr);
> diff --git a/src/mesa/vbo/vbo_attrib_tmp.h b/src/mesa/vbo/vbo_attrib_tmp.h
> index a2ea6d0..ec66934 100644
> --- a/src/mesa/vbo/vbo_attrib_tmp.h
> +++ b/src/mesa/vbo/vbo_attrib_tmp.h
> @@ -26,6 +26,7 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
> **************************************************************************/
>
> #include "util/u_format_r11g11b10f.h"
> +#include "main/varray.h"
>
> /* float */
> #define ATTR1FV( A, V ) ATTR( A, 1, GL_FLOAT, (V)[0], 0, 0, 1 )
> @@ -499,7 +500,7 @@ static void GLAPIENTRY
> TAG(VertexAttrib1fARB)(GLuint index, GLfloat x)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR1F(0, x);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR1F(VBO_ATTRIB_GENERIC0 + index, x);
> @@ -511,7 +512,7 @@ static void GLAPIENTRY
> TAG(VertexAttrib1fvARB)(GLuint index, const GLfloat * v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR1FV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR1FV(VBO_ATTRIB_GENERIC0 + index, v);
> @@ -523,7 +524,7 @@ static void GLAPIENTRY
> TAG(VertexAttrib2fARB)(GLuint index, GLfloat x, GLfloat y)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR2F(0, x, y);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR2F(VBO_ATTRIB_GENERIC0 + index, x, y);
> @@ -535,7 +536,7 @@ static void GLAPIENTRY
> TAG(VertexAttrib2fvARB)(GLuint index, const GLfloat * v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR2FV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR2FV(VBO_ATTRIB_GENERIC0 + index, v);
> @@ -547,7 +548,7 @@ static void GLAPIENTRY
> TAG(VertexAttrib3fARB)(GLuint index, GLfloat x, GLfloat y, GLfloat z)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR3F(0, x, y, z);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR3F(VBO_ATTRIB_GENERIC0 + index, x, y, z);
> @@ -559,7 +560,7 @@ static void GLAPIENTRY
> TAG(VertexAttrib3fvARB)(GLuint index, const GLfloat * v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR3FV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR3FV(VBO_ATTRIB_GENERIC0 + index, v);
> @@ -571,7 +572,7 @@ static void GLAPIENTRY
> TAG(VertexAttrib4fARB)(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR4F(0, x, y, z, w);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR4F(VBO_ATTRIB_GENERIC0 + index, x, y, z, w);
> @@ -583,7 +584,7 @@ static void GLAPIENTRY
> TAG(VertexAttrib4fvARB)(GLuint index, const GLfloat * v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR4FV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR4FV(VBO_ATTRIB_GENERIC0 + index, v);
> @@ -600,7 +601,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI1i)(GLuint index, GLint x)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR1I(0, x);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR1I(VBO_ATTRIB_GENERIC0 + index, x);
> @@ -612,7 +613,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI2i)(GLuint index, GLint x, GLint y)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR2I(0, x, y);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR2I(VBO_ATTRIB_GENERIC0 + index, x, y);
> @@ -624,7 +625,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI3i)(GLuint index, GLint x, GLint y, GLint z)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR3I(0, x, y, z);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR3I(VBO_ATTRIB_GENERIC0 + index, x, y, z);
> @@ -636,7 +637,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI4i)(GLuint index, GLint x, GLint y, GLint z, GLint w)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR4I(0, x, y, z, w);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR4I(VBO_ATTRIB_GENERIC0 + index, x, y, z, w);
> @@ -648,7 +649,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI2iv)(GLuint index, const GLint *v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR2IV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR2IV(VBO_ATTRIB_GENERIC0 + index, v);
> @@ -660,7 +661,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI3iv)(GLuint index, const GLint *v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR3IV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR3IV(VBO_ATTRIB_GENERIC0 + index, v);
> @@ -672,7 +673,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI4iv)(GLuint index, const GLint *v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR4IV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR4IV(VBO_ATTRIB_GENERIC0 + index, v);
> @@ -689,7 +690,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI1ui)(GLuint index, GLuint x)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR1UI(0, x);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR1UI(VBO_ATTRIB_GENERIC0 + index, x);
> @@ -701,7 +702,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI2ui)(GLuint index, GLuint x, GLuint y)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR2UI(0, x, y);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR2UI(VBO_ATTRIB_GENERIC0 + index, x, y);
> @@ -713,7 +714,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI3ui)(GLuint index, GLuint x, GLuint y, GLuint z)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR3UI(0, x, y, z);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR3UI(VBO_ATTRIB_GENERIC0 + index, x, y, z);
> @@ -725,7 +726,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI4ui)(GLuint index, GLuint x, GLuint y, GLuint z, GLuint w)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR4UI(0, x, y, z, w);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR4UI(VBO_ATTRIB_GENERIC0 + index, x, y, z, w);
> @@ -737,7 +738,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI2uiv)(GLuint index, const GLuint *v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR2UIV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR2UIV(VBO_ATTRIB_GENERIC0 + index, v);
> @@ -749,7 +750,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI3uiv)(GLuint index, const GLuint *v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR3UIV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR3UIV(VBO_ATTRIB_GENERIC0 + index, v);
> @@ -761,7 +762,7 @@ static void GLAPIENTRY
> TAG(VertexAttribI4uiv)(GLuint index, const GLuint *v)
> {
> GET_CURRENT_CONTEXT(ctx);
> - if (index == 0)
> + if (index == 0 && _mesa_attr_zero_aliases_vertex(ctx))
> ATTR4UIV(0, v);
> else if (index < MAX_VERTEX_GENERIC_ATTRIBS)
> ATTR4UIV(VBO_ATTRIB_GENERIC0 + index, v);
>
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