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::submit_frame()
26 void OpenGLCommands::use_pipeline(const PipelineState *ps)
30 OpenGLPipelineState::clear();
33 void OpenGLCommands::clear(const ClearValue *values)
35 const Framebuffer *target = (pipeline_state ? pipeline_state->get_framebuffer() : 0);
37 throw invalid_operation("OpenGLCommands::clear");
42 static Require _req(MSP_clear_buffer);
44 pipeline_state->apply();
47 for(FrameAttachment a: target->get_format())
49 if(get_attach_point(a)==get_attach_point(DEPTH_ATTACHMENT))
50 glClearBufferfv(GL_DEPTH, 0, &values->depth_stencil.depth);
51 else if(get_attach_point(a)==get_attach_point(STENCIL_ATTACHMENT))
52 glClearBufferiv(GL_STENCIL, 0, &values->depth_stencil.stencil);
54 glClearBufferfv(GL_COLOR, i++, &values->color.r);
59 void OpenGLCommands::draw(const Batch &batch)
62 throw invalid_operation("OpenGLCommands::draw");
64 pipeline_state->apply();
65 void *data_ptr = reinterpret_cast<void *>(batch.get_offset());
66 glDrawElements(batch.gl_prim_type, batch.size(), batch.gl_index_type, data_ptr);
69 void OpenGLCommands::draw_instanced(const Batch &batch, unsigned count)
72 throw invalid_operation("OpenGLCommands::draw_instanced");
74 static Require req(ARB_draw_instanced);
76 pipeline_state->apply();
77 void *data_ptr = reinterpret_cast<void *>(batch.get_offset());
78 glDrawElementsInstanced(batch.gl_prim_type, batch.size(), batch.gl_index_type, data_ptr, count);
81 void OpenGLCommands::resolve_multisample(Framebuffer &target)
83 const Framebuffer *source = (pipeline_state ? pipeline_state->get_framebuffer() : 0);
85 throw invalid_operation("OpenGLCommands::draw");
87 static Require _req(EXT_framebuffer_blit);
89 unsigned width = min(source->get_width(), target.get_width());
90 unsigned height = min(source->get_height(), target.get_height());
91 unsigned buffers = get_gl_buffer_bits(source->get_format())&get_gl_buffer_bits(target.get_format());
93 if(ARB_direct_state_access)
96 glBlitNamedFramebuffer(source->id, target.id, 0, 0, width, height, 0, 0, width, height, buffers, GL_NEAREST);
100 glBindFramebuffer(GL_READ_FRAMEBUFFER, source->id);
101 glBindFramebuffer(GL_DRAW_FRAMEBUFFER, target.id);
105 glBlitFramebuffer(0, 0, width, height, 0, 0, width, height, buffers, GL_NEAREST);
107 glBindFramebuffer(GL_FRAMEBUFFER, source->id);
111 void OpenGLCommands::begin_query(const QueryPool &pool, unsigned index)
113 if(index>=pool.queries.size())
114 throw out_of_range("OpenGLCommands::begin_query");
115 glBeginQuery(pool.gl_type, pool.queries[index]);
118 void OpenGLCommands::end_query(const QueryPool &pool, unsigned)
120 glEndQuery(pool.gl_type);