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-rw-r--r--src/mesa/main/api_validate.c115
-rw-r--r--src/mesa/main/api_validate.h16
-rw-r--r--src/mesa/vbo/vbo_exec_array.c103
3 files changed, 234 insertions, 0 deletions
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index d693ec64ce4..2b629977644 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -920,6 +920,121 @@ _mesa_validate_MultiDrawElementsIndirect(struct gl_context *ctx,
return GL_TRUE;
}
+static GLboolean
+valid_draw_indirect_parameters(struct gl_context *ctx,
+ const char *name,
+ GLintptr drawcount)
+{
+ /* From the ARB_indirect_parameters specification:
+ * "INVALID_VALUE is generated by MultiDrawArraysIndirectCountARB or
+ * MultiDrawElementsIndirectCountARB if <drawcount> is not a multiple of
+ * four."
+ */
+ if (drawcount & 3) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(drawcount is not a multiple of 4)", name);
+ return GL_FALSE;
+ }
+
+ /* From the ARB_indirect_parameters specification:
+ * "INVALID_OPERATION is generated by MultiDrawArraysIndirectCountARB or
+ * MultiDrawElementsIndirectCountARB if no buffer is bound to the
+ * PARAMETER_BUFFER_ARB binding point."
+ */
+ if (!_mesa_is_bufferobj(ctx->ParameterBuffer)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s: no buffer bound to PARAMETER_BUFFER", name);
+ return GL_FALSE;
+ }
+
+ if (_mesa_check_disallowed_mapping(ctx->ParameterBuffer)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(PARAMETER_BUFFER is mapped)", name);
+ return GL_FALSE;
+ }
+
+ /* From the ARB_indirect_parameters specification:
+ * "INVALID_OPERATION is generated by MultiDrawArraysIndirectCountARB or
+ * MultiDrawElementsIndirectCountARB if reading a <sizei> typed value
+ * from the buffer bound to the PARAMETER_BUFFER_ARB target at the offset
+ * specified by <drawcount> would result in an out-of-bounds access."
+ */
+ if (ctx->ParameterBuffer->Size < drawcount + sizeof(GLsizei)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(PARAMETER_BUFFER too small)", name);
+ return GL_FALSE;
+ }
+
+ return GL_TRUE;
+}
+
+GLboolean
+_mesa_validate_MultiDrawArraysIndirectCount(struct gl_context *ctx,
+ GLenum mode,
+ GLintptr indirect,
+ GLintptr drawcount,
+ GLsizei maxdrawcount,
+ GLsizei stride)
+{
+ GLsizeiptr size = 0;
+ const unsigned drawArraysNumParams = 4;
+
+ FLUSH_CURRENT(ctx, 0);
+
+ /* caller has converted stride==0 to drawArraysNumParams * sizeof(GLuint) */
+ assert(stride != 0);
+
+ if (!valid_draw_indirect_multi(ctx, maxdrawcount, stride,
+ "glMultiDrawArraysIndirectCountARB"))
+ return GL_FALSE;
+
+ /* number of bytes of the indirect buffer which will be read */
+ size = maxdrawcount
+ ? (maxdrawcount - 1) * stride + drawArraysNumParams * sizeof(GLuint)
+ : 0;
+
+ if (!valid_draw_indirect(ctx, mode, (void *)indirect, size,
+ "glMultiDrawArraysIndirectCountARB"))
+ return GL_FALSE;
+
+ return valid_draw_indirect_parameters(
+ ctx, "glMultiDrawArraysIndirectCountARB", drawcount);
+}
+
+GLboolean
+_mesa_validate_MultiDrawElementsIndirectCount(struct gl_context *ctx,
+ GLenum mode, GLenum type,
+ GLintptr indirect,
+ GLintptr drawcount,
+ GLsizei maxdrawcount,
+ GLsizei stride)
+{
+ GLsizeiptr size = 0;
+ const unsigned drawElementsNumParams = 5;
+
+ FLUSH_CURRENT(ctx, 0);
+
+ /* caller has converted stride==0 to drawElementsNumParams * sizeof(GLuint) */
+ assert(stride != 0);
+
+ if (!valid_draw_indirect_multi(ctx, maxdrawcount, stride,
+ "glMultiDrawElementsIndirectCountARB"))
+ return GL_FALSE;
+
+ /* number of bytes of the indirect buffer which will be read */
+ size = maxdrawcount
+ ? (maxdrawcount - 1) * stride + drawElementsNumParams * sizeof(GLuint)
+ : 0;
+
+ if (!valid_draw_indirect_elements(ctx, mode, type,
+ (void *)indirect, size,
+ "glMultiDrawElementsIndirectCountARB"))
+ return GL_FALSE;
+
+ return valid_draw_indirect_parameters(
+ ctx, "glMultiDrawElementsIndirectCountARB", drawcount);
+}
+
static bool
check_valid_to_compute(struct gl_context *ctx, const char *function)
{
diff --git a/src/mesa/main/api_validate.h b/src/mesa/main/api_validate.h
index 5d030a7ba37..5b321e3ac99 100644
--- a/src/mesa/main/api_validate.h
+++ b/src/mesa/main/api_validate.h
@@ -106,6 +106,22 @@ _mesa_validate_MultiDrawElementsIndirect(struct gl_context *ctx,
GLsizei stride);
extern GLboolean
+_mesa_validate_MultiDrawArraysIndirectCount(struct gl_context *ctx,
+ GLenum mode,
+ GLintptr indirect,
+ GLintptr drawcount,
+ GLsizei maxdrawcount,
+ GLsizei stride);
+
+extern GLboolean
+_mesa_validate_MultiDrawElementsIndirectCount(struct gl_context *ctx,
+ GLenum mode, GLenum type,
+ GLintptr indirect,
+ GLintptr drawcount,
+ GLsizei maxdrawcount,
+ GLsizei stride);
+
+extern GLboolean
_mesa_validate_DispatchCompute(struct gl_context *ctx,
const GLuint *num_groups);
diff --git a/src/mesa/vbo/vbo_exec_array.c b/src/mesa/vbo/vbo_exec_array.c
index c5019b1aa59..02139ef881f 100644
--- a/src/mesa/vbo/vbo_exec_array.c
+++ b/src/mesa/vbo/vbo_exec_array.c
@@ -1732,13 +1732,96 @@ vbo_exec_MultiDrawElementsIndirect(GLenum mode, GLenum type,
primcount, stride);
}
+static void
+vbo_validated_multidrawarraysindirectcount(struct gl_context *ctx,
+ GLenum mode,
+ GLintptr indirect,
+ GLintptr drawcount,
+ GLsizei maxdrawcount,
+ GLsizei stride)
+{
+ struct vbo_context *vbo = vbo_context(ctx);
+ struct vbo_exec_context *exec = &vbo->exec;
+ GLsizeiptr offset = indirect;
+
+ if (maxdrawcount == 0)
+ return;
+
+ vbo_bind_arrays(ctx);
+
+ check_buffers_are_unmapped(exec->array.inputs);
+ vbo->draw_indirect_prims(ctx, mode,
+ ctx->DrawIndirectBuffer, offset,
+ maxdrawcount, stride,
+ ctx->ParameterBuffer, drawcount,
+ NULL);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
+ _mesa_flush(ctx);
+}
+
+static void
+vbo_validated_multidrawelementsindirectcount(struct gl_context *ctx,
+ GLenum mode, GLenum type,
+ GLintptr indirect,
+ GLintptr drawcount,
+ GLsizei maxdrawcount,
+ GLsizei stride)
+{
+ struct vbo_context *vbo = vbo_context(ctx);
+ struct vbo_exec_context *exec = &vbo->exec;
+ struct _mesa_index_buffer ib;
+ GLsizeiptr offset = (GLsizeiptr)indirect;
+
+ if (maxdrawcount == 0)
+ return;
+
+ vbo_bind_arrays(ctx);
+
+ /* NOTE: IndexBufferObj is guaranteed to be a VBO. */
+
+ ib.count = 0; /* unknown */
+ ib.type = type;
+ ib.obj = ctx->Array.VAO->IndexBufferObj;
+ ib.ptr = NULL;
+
+ check_buffers_are_unmapped(exec->array.inputs);
+ vbo->draw_indirect_prims(ctx, mode,
+ ctx->DrawIndirectBuffer, offset,
+ maxdrawcount, stride,
+ ctx->ParameterBuffer, drawcount,
+ &ib);
+
+ if (MESA_DEBUG_FLAGS & DEBUG_ALWAYS_FLUSH)
+ _mesa_flush(ctx);
+}
+
static void GLAPIENTRY
vbo_exec_MultiDrawArraysIndirectCount(GLenum mode,
GLintptr indirect,
GLintptr drawcount,
GLsizei maxdrawcount, GLsizei stride)
{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glMultiDrawArraysIndirectCountARB"
+ "(%s, %lx, %lx, %i, %i)\n",
+ _mesa_enum_to_string(mode), indirect,
+ drawcount, maxdrawcount, stride);
+ /* If <stride> is zero, the array elements are treated as tightly packed. */
+ if (stride == 0)
+ stride = 4 * sizeof(GLuint); /* sizeof(DrawArraysIndirectCommand) */
+
+ if (!_mesa_validate_MultiDrawArraysIndirectCount(ctx, mode,
+ indirect, drawcount,
+ maxdrawcount, stride))
+ return;
+
+ vbo_validated_multidrawarraysindirectcount(ctx, mode,
+ indirect, drawcount,
+ maxdrawcount, stride);
}
static void GLAPIENTRY
@@ -1747,7 +1830,27 @@ vbo_exec_MultiDrawElementsIndirectCount(GLenum mode, GLenum type,
GLintptr drawcount,
GLsizei maxdrawcount, GLsizei stride)
{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glMultiDrawElementsIndirectCountARB"
+ "(%s, %s, %lx, %lx, %i, %i)\n",
+ _mesa_enum_to_string(mode),
+ _mesa_enum_to_string(type), indirect,
+ drawcount, maxdrawcount, stride);
+
+ /* If <stride> is zero, the array elements are treated as tightly packed. */
+ if (stride == 0)
+ stride = 5 * sizeof(GLuint); /* sizeof(DrawElementsIndirectCommand) */
+
+ if (!_mesa_validate_MultiDrawElementsIndirectCount(ctx, mode, type,
+ indirect, drawcount,
+ maxdrawcount, stride))
+ return;
+ vbo_validated_multidrawelementsindirectcount(ctx, mode, type,
+ indirect, drawcount,
+ maxdrawcount, stride);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 01:05:33 +0000