#include "main/context.h"
#include "main/state.h"
#include "main/api_validate.h"
-#include "main/api_noop.h"
#include "main/varray.h"
#include "main/bufferobj.h"
#include "main/enums.h"
/**
- * Compute min and max elements for glDraw[Range]Elements() calls.
+ * Compute min and max elements by scanning the index buffer for
+ * glDraw[Range]Elements() calls.
*/
void
-vbo_get_minmax_index(GLcontext *ctx,
+vbo_get_minmax_index(struct gl_context *ctx,
const struct _mesa_prim *prim,
const struct _mesa_index_buffer *ib,
GLuint *min_index, GLuint *max_index)
/**
* Check that element 'j' of the array has reasonable data.
* Map VBO if needed.
+ * For debugging purposes; not normally used.
*/
static void
-check_array_data(GLcontext *ctx, struct gl_client_array *array,
+check_array_data(struct gl_context *ctx, struct gl_client_array *array,
GLuint attrib, GLuint j)
{
if (array->Enabled) {
* Unmap the buffer object referenced by given array, if mapped.
*/
static void
-unmap_array_buffer(GLcontext *ctx, struct gl_client_array *array)
+unmap_array_buffer(struct gl_context *ctx, struct gl_client_array *array)
{
if (array->Enabled &&
_mesa_is_bufferobj(array->BufferObj) &&
/**
* Examine the array's data for NaNs, etc.
+ * For debug purposes; not normally used.
*/
static void
-check_draw_elements_data(GLcontext *ctx, GLsizei count, GLenum elemType,
+check_draw_elements_data(struct gl_context *ctx, GLsizei count, GLenum elemType,
const void *elements, GLint basevertex)
{
struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
* Check array data, looking for NaNs, etc.
*/
static void
-check_draw_arrays_data(GLcontext *ctx, GLint start, GLsizei count)
+check_draw_arrays_data(struct gl_context *ctx, GLint start, GLsizei count)
{
/* TO DO */
}
/**
- * Print info/data for glDrawArrays().
+ * Print info/data for glDrawArrays(), for debugging.
*/
static void
-print_draw_arrays(GLcontext *ctx, struct vbo_exec_context *exec,
+print_draw_arrays(struct gl_context *ctx, struct vbo_exec_context *exec,
GLenum mode, GLint start, GLsizei count)
{
int i;
/**
+ * Bind the VBO executor to the current vertex array object prior
+ * to drawing.
+ *
* Just translate the arrayobj into a sane layout.
*/
static void
-bind_array_obj(GLcontext *ctx)
+bind_array_obj(struct gl_context *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
}
+/**
+ * Set the vbo->exec->inputs[] pointers to point to the enabled
+ * vertex arrays. This depends on the current vertex program/shader
+ * being executed because of whether or not generic vertex arrays
+ * alias the conventional vertex arrays.
+ * For arrays that aren't enabled, we set the input[attrib] pointer
+ * to point at a zero-stride current value "array".
+ */
static void
-recalculate_input_bindings(GLcontext *ctx)
+recalculate_input_bindings(struct gl_context *ctx)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
* must be done after this call.
*/
static void
-bind_arrays(GLcontext *ctx)
+bind_arrays(struct gl_context *ctx)
{
-#if 0
- if (ctx->Array.ArrayObj.Name != exec->array.array_obj) {
- bind_array_obj(ctx);
- recalculate_input_bindings(ctx);
- }
- else if (exec->array.program_mode != get_program_mode(ctx) ||
- exec->array.enabled_flags != ctx->Array.ArrayObj->_Enabled) {
- recalculate_input_bindings(ctx);
- }
-#else
bind_array_obj(ctx);
recalculate_input_bindings(ctx);
-#endif
}
-/***********************************************************************
- * API functions.
+/**
+ * Called from glDrawArrays when in immediate mode (not display list mode).
*/
-
static void GLAPIENTRY
vbo_exec_DrawArrays(GLenum mode, GLint start, GLsizei count)
{
prim[0].count = count;
prim[0].indexed = 0;
prim[0].basevertex = 0;
+ prim[0].num_instances = 1;
vbo->draw_prims( ctx, exec->array.inputs, prim, 1, NULL,
GL_TRUE, start, start + count - 1 );
}
+/**
+ * Called from glDrawArraysInstanced when in immediate mode (not
+ * display list mode).
+ */
+static void GLAPIENTRY
+vbo_exec_DrawArraysInstanced(GLenum mode, GLint start, GLsizei count,
+ GLsizei primcount)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ struct vbo_context *vbo = vbo_context(ctx);
+ struct vbo_exec_context *exec = &vbo->exec;
+ struct _mesa_prim prim[1];
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glDrawArraysInstanced(%s, %d, %d, %d)\n",
+ _mesa_lookup_enum_by_nr(mode), start, count, primcount);
+
+ if (!_mesa_validate_DrawArraysInstanced(ctx, mode, start, count, primcount))
+ return;
+
+ FLUSH_CURRENT( ctx, 0 );
+
+ if (!_mesa_valid_to_render(ctx, "glDrawArraysInstanced")) {
+ return;
+ }
+
+#if 0 /* debug */
+ check_draw_arrays_data(ctx, start, count);
+#endif
+
+ bind_arrays( ctx );
+
+ /* Again... because we may have changed the bitmask of per-vertex varying
+ * attributes. If we regenerate the fixed-function vertex program now
+ * we may be able to prune down the number of vertex attributes which we
+ * need in the shader.
+ */
+ if (ctx->NewState)
+ _mesa_update_state( ctx );
+
+ prim[0].begin = 1;
+ prim[0].end = 1;
+ prim[0].weak = 0;
+ prim[0].pad = 0;
+ prim[0].mode = mode;
+ prim[0].start = start;
+ prim[0].count = count;
+ prim[0].indexed = 0;
+ prim[0].basevertex = 0;
+ prim[0].num_instances = primcount;
+
+ vbo->draw_prims( ctx, exec->array.inputs, prim, 1, NULL,
+ GL_TRUE, start, start + count - 1 );
+
+#if 0 /* debug */
+ print_draw_arrays(ctx, exec, mode, start, count);
+#endif
+}
+
+
/**
* Map GL_ELEMENT_ARRAY_BUFFER and print contents.
+ * For debugging.
*/
static void
-dump_element_buffer(GLcontext *ctx, GLenum type)
+dump_element_buffer(struct gl_context *ctx, GLenum type)
{
const GLvoid *map = ctx->Driver.MapBuffer(ctx,
GL_ELEMENT_ARRAY_BUFFER_ARB,
}
-/* Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements */
+/**
+ * Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements.
+ * Do the rendering for a glDrawElements or glDrawRangeElements call after
+ * we've validated buffer bounds, etc.
+ */
static void
-vbo_validated_drawrangeelements(GLcontext *ctx, GLenum mode,
+vbo_validated_drawrangeelements(struct gl_context *ctx, GLenum mode,
GLboolean index_bounds_valid,
GLuint start, GLuint end,
GLsizei count, GLenum type,
const GLvoid *indices,
- GLint basevertex)
+ GLint basevertex, GLint primcount)
{
struct vbo_context *vbo = vbo_context(ctx);
struct vbo_exec_context *exec = &vbo->exec;
prim[0].count = count;
prim[0].indexed = 1;
prim[0].basevertex = basevertex;
+ prim[0].num_instances = primcount;
/* Need to give special consideration to rendering a range of
* indices starting somewhere above zero. Typically the
index_bounds_valid, start, end );
}
+
+/**
+ * Called by glDrawRangeElementsBaseVertex() in immediate mode.
+ */
static void GLAPIENTRY
vbo_exec_DrawRangeElementsBaseVertex(GLenum mode,
GLuint start, GLuint end,
start, end, count, type, indices,
ctx->Array.ArrayObj->_MaxElement - 1,
ctx->Array.ElementArrayBufferObj->Name,
- ctx->Array.ElementArrayBufferObj->Size);
+ (int) ctx->Array.ElementArrayBufferObj->Size);
}
if (0)
start, end, count, type, indices, max,
ctx->Array.ArrayObj->_MaxElement - 1,
ctx->Array.ElementArrayBufferObj->Name,
- ctx->Array.ElementArrayBufferObj->Size);
+ (int) ctx->Array.ElementArrayBufferObj->Size);
}
}
/* XXX we could also find the min index and compare to 'start'
#endif
vbo_validated_drawrangeelements(ctx, mode, GL_TRUE, start, end,
- count, type, indices, basevertex);
+ count, type, indices, basevertex, 1);
}
+/**
+ * Called by glDrawRangeElements() in immediate mode.
+ */
static void GLAPIENTRY
vbo_exec_DrawRangeElements(GLenum mode, GLuint start, GLuint end,
GLsizei count, GLenum type, const GLvoid *indices)
}
+/**
+ * Called by glDrawElements() in immediate mode.
+ */
static void GLAPIENTRY
vbo_exec_DrawElements(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices)
return;
vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
- count, type, indices, 0);
+ count, type, indices, 0, 1);
}
+/**
+ * Called by glDrawElementsBaseVertex() in immediate mode.
+ */
static void GLAPIENTRY
vbo_exec_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices, GLint basevertex)
return;
vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
- count, type, indices, basevertex);
+ count, type, indices, basevertex, 1);
+}
+
+
+/**
+ * Called by glDrawElementsInstanced() in immediate mode.
+ */
+static void GLAPIENTRY
+vbo_exec_DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type,
+ const GLvoid *indices, GLsizei primcount)
+{
+ GET_CURRENT_CONTEXT(ctx);
+
+ if (MESA_VERBOSE & VERBOSE_DRAW)
+ _mesa_debug(ctx, "glDrawElementsInstanced(%s, %d, %s, %p, %d)\n",
+ _mesa_lookup_enum_by_nr(mode), count,
+ _mesa_lookup_enum_by_nr(type), indices, primcount);
+
+ if (!_mesa_validate_DrawElementsInstanced(ctx, mode, count, type, indices,
+ primcount))
+ return;
+
+ vbo_validated_drawrangeelements(ctx, mode, GL_FALSE, ~0, ~0,
+ count, type, indices, 0, primcount);
}
-/** Inner support for both _mesa_DrawElements and _mesa_DrawRangeElements */
+/**
+ * Inner support for both _mesa_MultiDrawElements() and
+ * _mesa_MultiDrawRangeElements().
+ * This does the actual rendering after we've checked array indexes, etc.
+ */
static void
-vbo_validated_multidrawelements(GLcontext *ctx, GLenum mode,
+vbo_validated_multidrawelements(struct gl_context *ctx, GLenum mode,
const GLsizei *count, GLenum type,
const GLvoid **indices, GLsizei primcount,
const GLint *basevertex)
}
/* Decide if we can do this all as one set of primitives sharing the
- * same index buffer, or if we have to reset the index pointer per primitive.
+ * same index buffer, or if we have to reset the index pointer per
+ * primitive.
*/
bind_arrays( ctx );
prim[i].start = ((uintptr_t)indices[i] - min_index_ptr) / index_type_size;
prim[i].count = count[i];
prim[i].indexed = 1;
+ prim[i].num_instances = 1;
if (basevertex != NULL)
prim[i].basevertex = basevertex[i];
else
prim[0].start = 0;
prim[0].count = count[i];
prim[0].indexed = 1;
+ prim[0].num_instances = 1;
if (basevertex != NULL)
prim[0].basevertex = basevertex[i];
else
}
-/***********************************************************************
- * Initialization
+/**
+ * Plug in the immediate-mode vertex array drawing commands into the
+ * givven vbo_exec_context object.
*/
-
void
vbo_exec_array_init( struct vbo_exec_context *exec )
{
-#if 1
exec->vtxfmt.DrawArrays = vbo_exec_DrawArrays;
exec->vtxfmt.DrawElements = vbo_exec_DrawElements;
exec->vtxfmt.DrawRangeElements = vbo_exec_DrawRangeElements;
exec->vtxfmt.DrawElementsBaseVertex = vbo_exec_DrawElementsBaseVertex;
exec->vtxfmt.DrawRangeElementsBaseVertex = vbo_exec_DrawRangeElementsBaseVertex;
exec->vtxfmt.MultiDrawElementsBaseVertex = vbo_exec_MultiDrawElementsBaseVertex;
-#else
- exec->vtxfmt.DrawArrays = _mesa_noop_DrawArrays;
- exec->vtxfmt.DrawElements = _mesa_noop_DrawElements;
- exec->vtxfmt.DrawRangeElements = _mesa_noop_DrawRangeElements;
- exec->vtxfmt.MultiDrawElementsEXT = _mesa_noop_MultiDrawElements;
- exec->vtxfmt.DrawElementsBaseVertex = _mesa_noop_DrawElementsBaseVertex;
- exec->vtxfmt.DrawRangeElementsBaseVertex = _mesa_noop_DrawRangeElementsBaseVertex;
- exec->vtxfmt.MultiDrawElementsBaseVertex = _mesa_noop_MultiDrawElementsBaseVertex;
-#endif
+ exec->vtxfmt.DrawArraysInstanced = vbo_exec_DrawArraysInstanced;
+ exec->vtxfmt.DrawElementsInstanced = vbo_exec_DrawElementsInstanced;
}
}
-/* This API entrypoint is not ordinarily used */
+
+/**
+ * The following functions are only used for OpenGL ES 1/2 support.
+ * And some aren't even supported (yet) in ES 1/2.
+ */
+
+
void GLAPIENTRY
_mesa_DrawArrays(GLenum mode, GLint first, GLsizei count)
{
}
-/* This API entrypoint is not ordinarily used */
void GLAPIENTRY
_mesa_DrawElements(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices)
vbo_exec_DrawElements(mode, count, type, indices);
}
+
void GLAPIENTRY
_mesa_DrawElementsBaseVertex(GLenum mode, GLsizei count, GLenum type,
const GLvoid *indices, GLint basevertex)
}
-/* This API entrypoint is not ordinarily used */
void GLAPIENTRY
_mesa_DrawRangeElements(GLenum mode, GLuint start, GLuint end, GLsizei count,
GLenum type, const GLvoid *indices)
}
-/* GL_EXT_multi_draw_arrays */
void GLAPIENTRY
_mesa_MultiDrawElementsEXT(GLenum mode, const GLsizei *count, GLenum type,
const GLvoid **indices, GLsizei primcount)
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