2 #include <msp/gl/extensions/arb_direct_state_access.h>
3 #include <msp/gl/extensions/arb_draw_instanced.h>
4 #include <msp/gl/extensions/arb_occlusion_query.h>
5 #include <msp/gl/extensions/ext_framebuffer_blit.h>
6 #include <msp/gl/extensions/ext_framebuffer_object.h>
7 #include <msp/gl/extensions/msp_clear_buffer.h>
9 #include "commands_backend.h"
11 #include "framebuffer.h"
13 #include "pipelinestate.h"
21 void OpenGLCommands::use_pipeline(const PipelineState *ps)
25 OpenGLPipelineState::clear();
28 void OpenGLCommands::clear(const ClearValue *values)
30 const Framebuffer *target = (pipeline_state ? pipeline_state->get_framebuffer() : 0);
32 throw invalid_operation("OpenGLCommands::clear");
34 static Require _req(MSP_clear_buffer);
36 pipeline_state->apply();
39 for(FrameAttachment a: target->get_format())
41 if(get_attach_point(a)==get_attach_point(DEPTH_ATTACHMENT))
42 glClearBufferfv(GL_DEPTH, 0, &values->depth_stencil.depth);
43 else if(get_attach_point(a)==get_attach_point(STENCIL_ATTACHMENT))
44 glClearBufferiv(GL_STENCIL, 0, &values->depth_stencil.stencil);
46 glClearBufferfv(GL_COLOR, i++, &values->color.r);
51 void OpenGLCommands::draw(const Batch &batch)
54 throw invalid_operation("OpenGLCommands::draw");
56 pipeline_state->apply();
57 void *data_ptr = reinterpret_cast<void *>(batch.get_offset());
58 glDrawElements(batch.gl_prim_type, batch.size(), batch.gl_index_type, data_ptr);
61 void OpenGLCommands::draw_instanced(const Batch &batch, unsigned count)
64 throw invalid_operation("OpenGLCommands::draw_instanced");
66 static Require req(ARB_draw_instanced);
68 pipeline_state->apply();
69 void *data_ptr = reinterpret_cast<void *>(batch.get_offset());
70 glDrawElementsInstanced(batch.gl_prim_type, batch.size(), batch.gl_index_type, data_ptr, count);
73 void OpenGLCommands::resolve_multisample(Framebuffer &target)
75 const Framebuffer *source = (pipeline_state ? pipeline_state->get_framebuffer() : 0);
77 throw invalid_operation("OpenGLCommands::draw");
79 static Require _req(EXT_framebuffer_blit);
81 unsigned width = min(source->get_width(), target.get_width());
82 unsigned height = min(source->get_height(), target.get_height());
83 unsigned buffers = get_gl_buffer_bits(source->get_format())&get_gl_buffer_bits(target.get_format());
85 if(ARB_direct_state_access)
86 glBlitNamedFramebuffer(source->id, target.id, 0, 0, width, height, 0, 0, width, height, buffers, GL_NEAREST);
89 glBindFramebuffer(GL_READ_FRAMEBUFFER, source->id);
90 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, target.id);
94 glBlitFramebuffer(0, 0, width, height, 0, 0, width, height, buffers, GL_NEAREST);
96 glBindFramebuffer(GL_FRAMEBUFFER, source->id);
100 void OpenGLCommands::begin_query(const QueryPool &pool, unsigned index)
102 if(index>=pool.queries.size())
103 throw out_of_range("OpenGLCommands::begin_query");
104 glBeginQuery(pool.gl_type, pool.queries[index]);
107 void OpenGLCommands::end_query(const QueryPool &pool, unsigned)
109 glEndQuery(pool.gl_type);