diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/main/bufferobj.c | 367 |
1 files changed, 367 insertions, 0 deletions
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c index 1e2dbf385e3..7b1bba09736 100644 --- a/src/mesa/main/bufferobj.c +++ b/src/mesa/main/bufferobj.c @@ -2780,6 +2780,39 @@ bind_atomic_buffer(struct gl_context *ctx, set_atomic_buffer_binding(ctx, binding, bufObj, offset, size); } +static inline bool +bind_buffers_check_offset_and_size(struct gl_context *ctx, + GLuint index, + const GLintptr *offsets, + const GLsizeiptr *sizes) +{ + if (offsets[index] < 0) { + /* The ARB_multi_bind spec says: + * + * "An INVALID_VALUE error is generated by BindBuffersRange if any + * value in <offsets> is less than zero (per binding)." + */ + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBuffersRange(offsets[%u]=%lld < 0)", + index, (long long int) offsets[index]); + return false; + } + + if (sizes[index] <= 0) { + /* The ARB_multi_bind spec says: + * + * "An INVALID_VALUE error is generated by BindBuffersRange if any + * value in <sizes> is less than or equal to zero (per binding)." + */ + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBuffersRange(sizes[%u]=%lld <= 0)", + index, (long long int) sizes[index]); + return false; + } + + return true; +} + static bool error_check_bind_uniform_buffers(struct gl_context *ctx, GLuint first, GLsizei count, @@ -2890,6 +2923,111 @@ bind_uniform_buffers_base(struct gl_context *ctx, GLuint first, GLsizei count, _mesa_end_bufferobj_lookups(ctx); } +static void +bind_uniform_buffers_range(struct gl_context *ctx, GLuint first, GLsizei count, + const GLuint *buffers, + const GLintptr *offsets, const GLsizeiptr *sizes) +{ + GLuint i; + + if (!error_check_bind_uniform_buffers(ctx, first, count, + "glBindBuffersRange")) + return; + + /* Assume that at least one binding will be changed */ + FLUSH_VERTICES(ctx, 0); + ctx->NewDriverState |= ctx->DriverFlags.NewUniformBuffer; + + if (!buffers) { + /* The ARB_multi_bind spec says: + * + * "If <buffers> is NULL, all bindings from <first> through + * <first>+<count>-1 are reset to their unbound (zero) state. + * In this case, the offsets and sizes associated with the + * binding points are set to default values, ignoring + * <offsets> and <sizes>." + */ + unbind_uniform_buffers(ctx, first, count); + return; + } + + /* Note that the error semantics for multi-bind commands differ from + * those of other GL commands. + * + * The Issues section in the ARB_multi_bind spec says: + * + * "(11) Typically, OpenGL specifies that if an error is generated by a + * command, that command has no effect. This is somewhat + * unfortunate for multi-bind commands, because it would require a + * first pass to scan the entire list of bound objects for errors + * and then a second pass to actually perform the bindings. + * Should we have different error semantics? + * + * RESOLVED: Yes. In this specification, when the parameters for + * one of the <count> binding points are invalid, that binding point + * is not updated and an error will be generated. However, other + * binding points in the same command will be updated if their + * parameters are valid and no other error occurs." + */ + + _mesa_begin_bufferobj_lookups(ctx); + + for (i = 0; i < count; i++) { + struct gl_uniform_buffer_binding *binding = + &ctx->UniformBufferBindings[first + i]; + struct gl_buffer_object *bufObj; + + if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes)) + continue; + + /* The ARB_multi_bind spec says: + * + * "An INVALID_VALUE error is generated by BindBuffersRange if any + * pair of values in <offsets> and <sizes> does not respectively + * satisfy the constraints described for those parameters for the + * specified target, as described in section 6.7.1 (per binding)." + * + * Section 6.7.1 refers to table 6.5, which says: + * + * "┌───────────────────────────────────────────────────────────────┐ + * │ Uniform buffer array bindings (see sec. 7.6) │ + * ├─────────────────────┬─────────────────────────────────────────┤ + * │ ... │ ... │ + * │ offset restriction │ multiple of value of UNIFORM_BUFFER_- │ + * │ │ OFFSET_ALIGNMENT │ + * │ ... │ ... │ + * │ size restriction │ none │ + * └─────────────────────┴─────────────────────────────────────────┘" + */ + if (offsets[i] & (ctx->Const.UniformBufferOffsetAlignment - 1)) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBuffersRange(offsets[%u]=%lld is misaligned; " + "it must be a multiple of the value of " + "GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT=%u when " + "target=GL_UNIFORM_BUFFER)", + i, (long long int) offsets[i], + ctx->Const.UniformBufferOffsetAlignment); + continue; + } + + if (binding->BufferObject && binding->BufferObject->Name == buffers[i]) + bufObj = binding->BufferObject; + else + bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i, + "glBindBuffersRange"); + + if (bufObj) { + if (bufObj == ctx->Shared->NullBufferObj) + set_ubo_binding(ctx, binding, bufObj, -1, -1, GL_FALSE); + else + set_ubo_binding(ctx, binding, bufObj, + offsets[i], sizes[i], GL_FALSE); + } + } + + _mesa_end_bufferobj_lookups(ctx); +} + static bool error_check_bind_xfb_buffers(struct gl_context *ctx, struct gl_transform_feedback_object *tfObj, @@ -3020,6 +3158,117 @@ bind_xfb_buffers_base(struct gl_context *ctx, _mesa_end_bufferobj_lookups(ctx); } +static void +bind_xfb_buffers_range(struct gl_context *ctx, + GLuint first, GLsizei count, + const GLuint *buffers, + const GLintptr *offsets, + const GLsizeiptr *sizes) +{ + struct gl_transform_feedback_object *tfObj = + ctx->TransformFeedback.CurrentObject; + GLuint i; + + if (!error_check_bind_xfb_buffers(ctx, tfObj, first, count, + "glBindBuffersRange")) + return; + + /* Assume that at least one binding will be changed */ + FLUSH_VERTICES(ctx, 0); + ctx->NewDriverState |= ctx->DriverFlags.NewTransformFeedback; + + if (!buffers) { + /* The ARB_multi_bind spec says: + * + * "If <buffers> is NULL, all bindings from <first> through + * <first>+<count>-1 are reset to their unbound (zero) state. + * In this case, the offsets and sizes associated with the + * binding points are set to default values, ignoring + * <offsets> and <sizes>." + */ + unbind_xfb_buffers(ctx, tfObj, first, count); + return; + } + + /* Note that the error semantics for multi-bind commands differ from + * those of other GL commands. + * + * The Issues section in the ARB_multi_bind spec says: + * + * "(11) Typically, OpenGL specifies that if an error is generated by a + * command, that command has no effect. This is somewhat + * unfortunate for multi-bind commands, because it would require a + * first pass to scan the entire list of bound objects for errors + * and then a second pass to actually perform the bindings. + * Should we have different error semantics? + * + * RESOLVED: Yes. In this specification, when the parameters for + * one of the <count> binding points are invalid, that binding point + * is not updated and an error will be generated. However, other + * binding points in the same command will be updated if their + * parameters are valid and no other error occurs." + */ + + _mesa_begin_bufferobj_lookups(ctx); + + for (i = 0; i < count; i++) { + const GLuint index = first + i; + struct gl_buffer_object * const boundBufObj = tfObj->Buffers[index]; + struct gl_buffer_object *bufObj; + + if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes)) + continue; + + /* The ARB_multi_bind spec says: + * + * "An INVALID_VALUE error is generated by BindBuffersRange if any + * pair of values in <offsets> and <sizes> does not respectively + * satisfy the constraints described for those parameters for the + * specified target, as described in section 6.7.1 (per binding)." + * + * Section 6.7.1 refers to table 6.5, which says: + * + * "┌───────────────────────────────────────────────────────────────┐ + * │ Transform feedback array bindings (see sec. 13.2.2) │ + * ├───────────────────────┬───────────────────────────────────────┤ + * │ ... │ ... │ + * │ offset restriction │ multiple of 4 │ + * │ ... │ ... │ + * │ size restriction │ multiple of 4 │ + * └───────────────────────┴───────────────────────────────────────┘" + */ + if (offsets[i] & 0x3) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBuffersRange(offsets[%u]=%lld is misaligned; " + "it must be a multiple of 4 when " + "target=GL_TRANSFORM_FEEDBACK_BUFFER)", + i, (long long int) offsets[i]); + continue; + } + + if (sizes[i] & 0x3) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBuffersRange(sizes[%u]=%lld is misaligned; " + "it must be a multiple of 4 when " + "target=GL_TRANSFORM_FEEDBACK_BUFFER)", + i, (long long int) sizes[i]); + continue; + } + + if (boundBufObj && boundBufObj->Name == buffers[i]) + bufObj = boundBufObj; + else + bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i, + "glBindBuffersRange"); + + if (bufObj) + _mesa_set_transform_feedback_binding(ctx, tfObj, index, bufObj, + offsets[i], sizes[i]); + } + + _mesa_end_bufferobj_lookups(ctx); +} + static bool error_check_bind_atomic_buffers(struct gl_context *ctx, GLuint first, GLsizei count, @@ -3128,6 +3377,106 @@ bind_atomic_buffers_base(struct gl_context *ctx, _mesa_end_bufferobj_lookups(ctx); } +static void +bind_atomic_buffers_range(struct gl_context *ctx, + GLuint first, + GLsizei count, + const GLuint *buffers, + const GLintptr *offsets, + const GLsizeiptr *sizes) +{ + GLuint i; + + if (!error_check_bind_atomic_buffers(ctx, first, count, + "glBindBuffersRange")) + return; + + /* Assume that at least one binding will be changed */ + FLUSH_VERTICES(ctx, 0); + ctx->NewDriverState |= ctx->DriverFlags.NewAtomicBuffer; + + if (!buffers) { + /* The ARB_multi_bind spec says: + * + * "If <buffers> is NULL, all bindings from <first> through + * <first>+<count>-1 are reset to their unbound (zero) state. + * In this case, the offsets and sizes associated with the + * binding points are set to default values, ignoring + * <offsets> and <sizes>." + */ + unbind_atomic_buffers(ctx, first, count); + return; + } + + /* Note that the error semantics for multi-bind commands differ from + * those of other GL commands. + * + * The Issues section in the ARB_multi_bind spec says: + * + * "(11) Typically, OpenGL specifies that if an error is generated by a + * command, that command has no effect. This is somewhat + * unfortunate for multi-bind commands, because it would require a + * first pass to scan the entire list of bound objects for errors + * and then a second pass to actually perform the bindings. + * Should we have different error semantics? + * + * RESOLVED: Yes. In this specification, when the parameters for + * one of the <count> binding points are invalid, that binding point + * is not updated and an error will be generated. However, other + * binding points in the same command will be updated if their + * parameters are valid and no other error occurs." + */ + + _mesa_begin_bufferobj_lookups(ctx); + + for (i = 0; i < count; i++) { + struct gl_atomic_buffer_binding *binding = + &ctx->AtomicBufferBindings[first + i]; + struct gl_buffer_object *bufObj; + + if (!bind_buffers_check_offset_and_size(ctx, i, offsets, sizes)) + continue; + + /* The ARB_multi_bind spec says: + * + * "An INVALID_VALUE error is generated by BindBuffersRange if any + * pair of values in <offsets> and <sizes> does not respectively + * satisfy the constraints described for those parameters for the + * specified target, as described in section 6.7.1 (per binding)." + * + * Section 6.7.1 refers to table 6.5, which says: + * + * "┌───────────────────────────────────────────────────────────────┐ + * │ Atomic counter array bindings (see sec. 7.7.2) │ + * ├───────────────────────┬───────────────────────────────────────┤ + * │ ... │ ... │ + * │ offset restriction │ multiple of 4 │ + * │ ... │ ... │ + * │ size restriction │ none │ + * └───────────────────────┴───────────────────────────────────────┘" + */ + if (offsets[i] & (ATOMIC_COUNTER_SIZE - 1)) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBuffersRange(offsets[%u]=%lld is misaligned; " + "it must be a multiple of %d when " + "target=GL_ATOMIC_COUNTER_BUFFER)", + i, (long long int) offsets[i], ATOMIC_COUNTER_SIZE); + continue; + } + + if (binding->BufferObject && binding->BufferObject->Name == buffers[i]) + bufObj = binding->BufferObject; + else + bufObj = _mesa_multi_bind_lookup_bufferobj(ctx, buffers, i, + "glBindBuffersRange"); + + if (bufObj) + set_atomic_buffer_binding(ctx, binding, bufObj, offsets[i], sizes[i]); + } + + _mesa_end_bufferobj_lookups(ctx); +} + void GLAPIENTRY _mesa_BindBufferRange(GLenum target, GLuint index, GLuint buffer, GLintptr offset, GLsizeiptr size) @@ -3245,6 +3594,24 @@ _mesa_BindBuffersRange(GLenum target, GLuint first, GLsizei count, const GLuint *buffers, const GLintptr *offsets, const GLsizeiptr *sizes) { + GET_CURRENT_CONTEXT(ctx); + + switch (target) { + case GL_TRANSFORM_FEEDBACK_BUFFER: + bind_xfb_buffers_range(ctx, first, count, buffers, offsets, sizes); + return; + case GL_UNIFORM_BUFFER: + bind_uniform_buffers_range(ctx, first, count, buffers, offsets, sizes); + return; + case GL_ATOMIC_COUNTER_BUFFER: + bind_atomic_buffers_range(ctx, first, count, buffers, + offsets, sizes); + return; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glBindBuffersRange(target=%s)", + _mesa_lookup_enum_by_nr(target)); + break; + } } void GLAPIENTRY |