Differential D5383 Diff 16740 source/blender/gpu/intern/gpu_batch.c

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source/blender/gpu/intern/gpu_batch.c

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* GPU geometry batch		* GPU geometry batch
* Contains VAOs + VBOs + Shader representing a drawable entity.		* Contains VAOs + VBOs + Shader representing a drawable entity.
*/		*/

#include "MEM_guardedalloc.h"		#include "MEM_guardedalloc.h"

#include "GPU_batch.h"		#include "GPU_batch.h"
#include "GPU_batch_presets.h"		#include "GPU_batch_presets.h"
		#include "GPU_extensions.h"
#include "GPU_matrix.h"		#include "GPU_matrix.h"
#include "GPU_shader.h"		#include "GPU_shader.h"

#include "gpu_batch_private.h"		#include "gpu_batch_private.h"
#include "gpu_context_private.h"		#include "gpu_context_private.h"
#include "gpu_primitive_private.h"		#include "gpu_primitive_private.h"
#include "gpu_shader_private.h"		#include "gpu_shader_private.h"

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if (v_count == 0) {		if (v_count == 0) {
v_count = (batch->elem) ? batch->elem->index_len : batch->verts[0]->vertex_len;		v_count = (batch->elem) ? batch->elem->index_len : batch->verts[0]->vertex_len;
}		}
if (i_count == 0) {		if (i_count == 0) {
i_count = (batch->inst) ? batch->inst->vertex_len : 1;		i_count = (batch->inst) ? batch->inst->vertex_len : 1;
}		}

if (!GLEW_ARB_base_instance) {		if (!GPU_arb_base_instance_is_supported()) {
if (i_first > 0 && i_count > 0) {		if (i_first > 0 && i_count > 0) {
/* If using offset drawing with instancing, we must		/* If using offset drawing with instancing, we must
* use the default VAO and redo bindings. */		* use the default VAO and redo bindings. */
glBindVertexArray(GPU_vao_default());		glBindVertexArray(GPU_vao_default());
batch_update_program_bindings(batch, i_first);		batch_update_program_bindings(batch, i_first);
}		}
else {		else {
/* Previous call could have bind the default vao		/* Previous call could have bind the default vao
* see above. */		* see above. */
glBindVertexArray(batch->vao_id);		glBindVertexArray(batch->vao_id);
}		}
}		}

if (batch->elem) {		if (batch->elem) {
const GPUIndexBuf *el = batch->elem;		const GPUIndexBuf *el = batch->elem;
#if GPU_TRACK_INDEX_RANGE		#if GPU_TRACK_INDEX_RANGE
GLenum index_type = el->gl_index_type;		GLenum index_type = el->gl_index_type;
GLint base_index = el->base_index;		GLint base_index = el->base_index;
#else		#else
GLenum index_type = GL_UNSIGNED_INT;		GLenum index_type = GL_UNSIGNED_INT;
GLint base_index = 0;		GLint base_index = 0;
#endif		#endif
void *v_first_ofs = elem_offset(el, v_first);		void *v_first_ofs = elem_offset(el, v_first);

if (GLEW_ARB_base_instance) {		if (GPU_arb_base_instance_is_supported()) {
glDrawElementsInstancedBaseVertexBaseInstance(		glDrawElementsInstancedBaseVertexBaseInstance(
batch->gl_prim_type, v_count, index_type, v_first_ofs, i_count, base_index, i_first);		batch->gl_prim_type, v_count, index_type, v_first_ofs, i_count, base_index, i_first);
}		}
else {		else {
glDrawElementsInstancedBaseVertex(		glDrawElementsInstancedBaseVertex(
batch->gl_prim_type, v_count, index_type, v_first_ofs, i_count, base_index);		batch->gl_prim_type, v_count, index_type, v_first_ofs, i_count, base_index);
}		}
}		}
else {		else {
#ifdef __APPLE__		#ifdef __APPLE__
glDisable(GL_PRIMITIVE_RESTART);		glDisable(GL_PRIMITIVE_RESTART);
#endif		#endif
if (GLEW_ARB_base_instance) {		if (GPU_arb_base_instance_is_supported()) {
glDrawArraysInstancedBaseInstance(batch->gl_prim_type, v_first, v_count, i_count, i_first);		glDrawArraysInstancedBaseInstance(batch->gl_prim_type, v_first, v_count, i_count, i_first);
}		}
else {		else {
glDrawArraysInstanced(batch->gl_prim_type, v_first, v_count, i_count);		glDrawArraysInstanced(batch->gl_prim_type, v_first, v_count, i_count);
}		}
#ifdef __APPLE__		#ifdef __APPLE__
glEnable(GL_PRIMITIVE_RESTART);		glEnable(GL_PRIMITIVE_RESTART);
#endif		#endif
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