<div dir="ltr"> <div class="gmail_extra"> <div class="gmail_quote">On Thu, Jan 29, 2015 at 4:55 AM, Martin Peres <<a href="mailto:martin.peres@linux.intel.com" target="_blank">martin.peres@linux.intel.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">v2: review from Laura Ekstrand - use the refactored code to lookup the objects - improve some error messages - factor out the gl method name computation - better handle the spec differences between the DSA and non-DSA cases - quote the spec a little more Signed-off-by: Martin Peres <<a href="mailto:martin.peres@linux.intel.com">martin.peres@linux.intel.com</a>> --- src/mapi/glapi/gen/ARB_direct_state_access.xml | 8 +++ src/mesa/main/bufferobj.c | 3 +- src/mesa/main/tests/dispatch_sanity.cpp | 1 + src/mesa/main/transformfeedback.c | 94 +++++++++++++++++++++----- src/mesa/main/transformfeedback.h | 6 +- 5 files changed, 94 insertions(+), 18 deletions(-) diff --git a/src/mapi/glapi/gen/ARB_direct_state_access.xml b/src/mapi/glapi/gen/ARB_direct_state_access.xml index 35d6906..b3c090f 100644 --- a/src/mapi/glapi/gen/ARB_direct_state_access.xml +++ b/src/mapi/glapi/gen/ARB_direct_state_access.xml @@ -20,6 +20,14 @@ <param name="buffer" type="GLuint" /> </function> + <function name="TransformFeedbackBufferRange" offset="assign"> + <param name="xfb" type="GLuint" /> + <param name="index" type="GLuint" /> + <param name="buffer" type="GLuint" /> + <param name="offset" type="GLintptr" /> + <param name="size" type="GLsizeiptr" /> + </function> +  <function name="CreateTextures" offset="assign"> diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c index 86532ea..7558e17 100644 --- a/src/mesa/main/bufferobj.c +++ b/src/mesa/main/bufferobj.c @@ -3548,7 +3548,8 @@ _mesa_BindBufferRange(GLenum target, GLuint index, case GL_TRANSFORM_FEEDBACK_BUFFER: _mesa_bind_buffer_range_transform_feedback(ctx, ctx->TransformFeedback.CurrentObject, - index, bufObj, offset, size); + index, bufObj, offset, size, + false); return; case GL_UNIFORM_BUFFER: bind_buffer_range_uniform_buffer(ctx, index, bufObj, offset, size); diff --git a/src/mesa/main/tests/dispatch_sanity.cpp b/src/mesa/main/tests/dispatch_sanity.cpp index 166401a..3b34f7b 100644 --- a/src/mesa/main/tests/dispatch_sanity.cpp +++ b/src/mesa/main/tests/dispatch_sanity.cpp @@ -957,6 +957,7 @@ const struct function gl_core_functions_possible[] = { /* GL_ARB_direct_state_access */ { "glCreateTransformFeedbacks", 45, -1 }, { "glTransformFeedbackBufferBase", 45, -1 }, + { "glTransformFeedbackBufferRange", 45, -1 }, { "glCreateTextures", 45, -1 }, { "glTextureStorage1D", 45, -1 }, { "glTextureStorage2D", 45, -1 }, diff --git a/src/mesa/main/transformfeedback.c b/src/mesa/main/transformfeedback.c index 6583974..7564b6f 100644 --- a/src/mesa/main/transformfeedback.c +++ b/src/mesa/main/transformfeedback.c @@ -541,7 +541,8 @@ bind_buffer_range(struct gl_context *ctx, /** * Specify a buffer object to receive transform feedback results. Plus, * specify the starting offset to place the results, and max size. - * Called from the glBindBufferRange() function. + * Called from the glBindBufferRange() and glTransformFeedbackBufferRange + * functions. */ void _mesa_bind_buffer_range_transform_feedback(struct gl_context *ctx, @@ -549,35 +550,72 @@ _mesa_bind_buffer_range_transform_feedback(struct gl_context *ctx, GLuint index, struct gl_buffer_object *bufObj, GLintptr offset, - GLsizeiptr size) + GLsizeiptr size, + bool dsa) { + const char *gl_methd_name; + if (dsa) + gl_methd_name = "glTransformFeedbackBufferRange"; + else + gl_methd_name = "glBindBufferRange"; + + if (obj->Active) { - _mesa_error(ctx, GL_INVALID_OPERATION, - "glBindBufferRange(transform feedback active)"); + _mesa_error(ctx, GL_INVALID_OPERATION, "%s(transform feedback active)", + gl_methd_name); return; } if (index >= ctx->Const.MaxTransformFeedbackBuffers) { - _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferRange(index=%d " - "out of bounds)", index); + /* An INVALID_VALUE error is generated if index is greater than or equal + * to the number of binding points for transform feedback, as described + * in section 6.7.1. + */ + _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%d out of bounds)", + gl_methd_name, index); return; } if (size & 0x3) { - /* must a multiple of four */ - _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferRange(size=%d)", - (int) size); + /* must a be multiple of four */ + _mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d must be a multiple of " + "four)", gl_methd_name, (int) size); return; } if (offset & 0x3) { /* must be multiple of four */ - _mesa_error(ctx, GL_INVALID_VALUE, - "glBindBufferRange(offset=%d)", (int) offset); + _mesa_error(ctx, GL_INVALID_VALUE, "gl%s(offset=%d must be a multiple " + "of four)", gl_methd_name, (int) offset); return; - } + } + </blockquote><div>I think you got your offset and size comments in the wrong functions. They are mixed up. </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> + if (offset < 0) { + /* An INVALID_VALUE error is generated by BindBufferRange if offset is + * negative. + */ + /* An INVALID_VALUE error is generated by TransformFeedbackBufferRange + * if size is less than or equal to zero. + */ + _mesa_error(ctx, GL_INVALID_VALUE, "%s(offset=%d must be >= 0)", + gl_methd_name, + (int) offset); + return; + } - bind_buffer_range(ctx, obj, index, bufObj, offset, size, false); + if (size <= 0 && (dsa || bufObj != ctx->Shared->NullBufferObj)) { + /* An INVALID_VALUE error is generated by BindBufferRange if buffer is + * non-zero and size is less than or equal to zero. + */ + /* An INVALID_VALUE error is generated by TransformFeedbackBufferRange + * if offset is negative. + */ + _mesa_error(ctx, GL_INVALID_VALUE, "%s(size=%d must be > 0)", + gl_methd_name, (int) size); + return; + } + + bind_buffer_range(ctx, obj, index, bufObj, offset, size, dsa); } </blockquote><div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> @@ -596,14 +634,14 @@ _mesa_bind_buffer_base_transform_feedback(struct gl_context *ctx, { if (obj->Active) { _mesa_error(ctx, GL_INVALID_OPERATION, - "%s(transform feedback active)", - dsa?"glTransformFeedbackBufferBase":"glBindBufferBase"); + "gl%s(transform feedback active)", + dsa?"TransformFeedbackBufferBase":"BindBufferBase"); return; } if (index >= ctx->Const.MaxTransformFeedbackBuffers) { _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%d out of bounds)", - dsa?"glTransformFeedbackBufferBase":"glBindBufferBase", + dsa ? "glTransformFeedbackBufferBase" : "glBindBufferBase", index); return; } @@ -679,6 +717,30 @@ _mesa_TransformFeedbackBufferBase(GLuint xfb, GLuint index, GLuint buffer) _mesa_bind_buffer_base_transform_feedback(ctx, obj, index, bufObj, true); } +void GLAPIENTRY +_mesa_TransformFeedbackBufferRange(GLuint xfb, GLuint index, GLuint buffer, + GLintptr offset, GLsizeiptr size) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_transform_feedback_object *obj; + struct gl_buffer_object *bufObj; + + obj = _mesa_lookup_transform_feedback_object_err(ctx, xfb, + "glTransformFeedbackBufferRange"); + if(!obj) { + return; + } + + bufObj = _mesa_lookup_bufferobj_err(ctx, buffer, + "glTransformFeedbackBufferRange"); + if(!bufObj) { + return; + } + + _mesa_bind_buffer_range_transform_feedback(ctx, obj, index, bufObj, offset, + size, true); +} + /** * Specify a buffer object to receive transform feedback results, plus the * offset in the buffer to start placing results. diff --git a/src/mesa/main/transformfeedback.h b/src/mesa/main/transformfeedback.h index 2c4ce58..1178169 100644 --- a/src/mesa/main/transformfeedback.h +++ b/src/mesa/main/transformfeedback.h @@ -69,7 +69,7 @@ _mesa_bind_buffer_range_transform_feedback(struct gl_context *ctx, GLuint index, struct gl_buffer_object *bufObj, GLintptr offset, - GLsizeiptr size); + GLsizeiptr size, bool dsa); extern void _mesa_bind_buffer_base_transform_feedback(struct gl_context *ctx, @@ -162,4 +162,8 @@ _mesa_lookup_bufferobj_err(struct gl_context *ctx, GLuint buffer, extern void GLAPIENTRY _mesa_TransformFeedbackBufferBase(GLuint xfb, GLuint index, GLuint buffer); +extern void GLAPIENTRY +_mesa_TransformFeedbackBufferRange(GLuint xfb, GLuint index, GLuint buffer, + GLintptr offset, GLsizeiptr size); + #endif /* TRANSFORM_FEEDBACK_H */ -- 2.2.2 _______________________________________________ mesa-dev mailing list <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/mesa-dev" target="_blank">http://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </blockquote></div> </div></div>