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comparison pytouhou/ui/opengl/renderer.pyx @ 520:c0b3f8709f74

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Store the indices of the framebuffer in a static ibo.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Thu, 12 Dec 2013 13:15:43 +0100
parents 75ae628522c9
children dacdcca59b66
comparison
equal deleted inserted replaced
519:b18f0bd30ad0 520:c0b3f8709f74
29 glFramebufferTexture2D, glFramebufferRenderbuffer, 29 glFramebufferTexture2D, glFramebufferRenderbuffer,
30 glCheckFramebufferStatus, GL_FRAMEBUFFER, GL_TEXTURE_MIN_FILTER, 30 glCheckFramebufferStatus, GL_FRAMEBUFFER, GL_TEXTURE_MIN_FILTER,
31 GL_LINEAR, GL_TEXTURE_MAG_FILTER, GL_RGBA, GL_RENDERBUFFER, 31 GL_LINEAR, GL_TEXTURE_MAG_FILTER, GL_RGBA, GL_RENDERBUFFER,
32 GL_DEPTH_COMPONENT, GL_COLOR_ATTACHMENT0, GL_DEPTH_ATTACHMENT, 32 GL_DEPTH_COMPONENT, GL_COLOR_ATTACHMENT0, GL_DEPTH_ATTACHMENT,
33 GL_FRAMEBUFFER_COMPLETE, glClear, GL_COLOR_BUFFER_BIT, 33 GL_FRAMEBUFFER_COMPLETE, glClear, GL_COLOR_BUFFER_BIT,
34 GL_DEPTH_BUFFER_BIT, GLuint, glDeleteTextures) 34 GL_DEPTH_BUFFER_BIT, GLuint, glDeleteTextures,
35 GL_ELEMENT_ARRAY_BUFFER, GL_STATIC_DRAW)
35 36
36 from pytouhou.lib.sdl import SDLError 37 from pytouhou.lib.sdl import SDLError
37 38
38 from pytouhou.game.element cimport Element 39 from pytouhou.game.element cimport Element
39 from .sprite cimport get_sprite_rendering_data 40 from .sprite cimport get_sprite_rendering_data
91 glDeleteBuffers(1, &self.framebuffer_vbo) 92 glDeleteBuffers(1, &self.framebuffer_vbo)
92 glDeleteBuffers(1, &self.vbo) 93 glDeleteBuffers(1, &self.vbo)
93 94
94 95
95 def __init__(self, resource_loader): 96 def __init__(self, resource_loader):
97 # Only used in modern GL.
98 cdef unsigned short framebuffer_indices[6]
99
96 self.texture_manager = TextureManager(resource_loader, self, Texture) 100 self.texture_manager = TextureManager(resource_loader, self, Texture)
97 font_name = join(resource_loader.game_dir, 'font.ttf') 101 font_name = join(resource_loader.game_dir, 'font.ttf')
98 try: 102 try:
99 self.font_manager = FontManager(font_name, 16, self, Texture) 103 self.font_manager = FontManager(font_name, 16, self, Texture)
100 except SDLError: 104 except SDLError:
101 self.font_manager = None 105 self.font_manager = None
102 logger.error('Font file “%s” not found, disabling text rendering altogether.', font_name) 106 logger.error('Font file “%s” not found, disabling text rendering altogether.', font_name)
103 107
104 if not self.use_fixed_pipeline: 108 if not self.use_fixed_pipeline:
109 framebuffer_indices[:] = [0, 1, 2, 2, 3, 0]
110
105 glGenBuffers(1, &self.vbo) 111 glGenBuffers(1, &self.vbo)
106 glGenBuffers(1, &self.framebuffer_vbo) 112 glGenBuffers(1, &self.framebuffer_vbo)
113 glGenBuffers(1, &self.framebuffer_ibo)
114
115 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, self.framebuffer_ibo)
116 glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(framebuffer_indices), framebuffer_indices, GL_STATIC_DRAW)
117 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0)
107 118
108 119
109 cdef void render_elements(self, elements): 120 cdef void render_elements(self, elements):
110 cdef int key 121 cdef int key
111 cdef short x1, y1, z1, x2, y2, z2, x3, y3, z3, x4, y4, z4, ox, oy 122 cdef short x1, y1, z1, x2, y2, z2, x3, y3, z3, x4, y4, z4, ox, oy
234 glBindBuffer(GL_ARRAY_BUFFER, 0) 245 glBindBuffer(GL_ARRAY_BUFFER, 0)
235 246
236 247
237 cdef void render_framebuffer(self, Framebuffer fb): 248 cdef void render_framebuffer(self, Framebuffer fb):
238 cdef PassthroughVertex[4] buf 249 cdef PassthroughVertex[4] buf
239 cdef unsigned short indices[6]
240 indices[:] = [0, 1, 2, 2, 3, 0]
241 250
242 assert not self.use_fixed_pipeline 251 assert not self.use_fixed_pipeline
243 252
244 glBindFramebuffer(GL_FRAMEBUFFER, 0) 253 glBindFramebuffer(GL_FRAMEBUFFER, 0)
245 glViewport(self.x, self.y, self.width, self.height) 254 glViewport(self.x, self.y, self.width, self.height)
246 glBlendFunc(GL_ONE, GL_ZERO) 255 glBlendFunc(GL_ONE, GL_ZERO)
247 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) 256 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
248 257
249 glBindBuffer(GL_ARRAY_BUFFER, self.framebuffer_vbo) 258 glBindBuffer(GL_ARRAY_BUFFER, self.framebuffer_vbo)
259 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, self.framebuffer_ibo)
250 260
251 #TODO: find a way to use offsetof() instead of those ugly hardcoded values. 261 #TODO: find a way to use offsetof() instead of those ugly hardcoded values.
252 glVertexAttribPointer(0, 2, GL_SHORT, False, sizeof(PassthroughVertex), <void*>0) 262 glVertexAttribPointer(0, 2, GL_SHORT, False, sizeof(PassthroughVertex), <void*>0)
253 glEnableVertexAttribArray(0) 263 glEnableVertexAttribArray(0)
254 glVertexAttribPointer(1, 2, GL_FLOAT, False, sizeof(PassthroughVertex), <void*>4) 264 glVertexAttribPointer(1, 2, GL_FLOAT, False, sizeof(PassthroughVertex), <void*>4)
259 buf[2] = PassthroughVertex(fb.x + fb.width, fb.y + fb.height, 1, 0) 269 buf[2] = PassthroughVertex(fb.x + fb.width, fb.y + fb.height, 1, 0)
260 buf[3] = PassthroughVertex(fb.x, fb.y + fb.height, 0, 0) 270 buf[3] = PassthroughVertex(fb.x, fb.y + fb.height, 0, 0)
261 glBufferData(GL_ARRAY_BUFFER, 4 * sizeof(PassthroughVertex), buf, GL_DYNAMIC_DRAW) 271 glBufferData(GL_ARRAY_BUFFER, 4 * sizeof(PassthroughVertex), buf, GL_DYNAMIC_DRAW)
262 272
263 glBindTexture(GL_TEXTURE_2D, fb.texture) 273 glBindTexture(GL_TEXTURE_2D, fb.texture)
264 glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, indices) 274 glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_SHORT, NULL)
265 glBindTexture(GL_TEXTURE_2D, 0) 275 glBindTexture(GL_TEXTURE_2D, 0)
266 276
267 glBindBuffer(GL_ARRAY_BUFFER, 0) 277 glBindBuffer(GL_ARRAY_BUFFER, 0)
278 glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0)
268 279
269 280
270 cdef class Framebuffer: 281 cdef class Framebuffer:
271 def __init__(self, int x, int y, int width, int height): 282 def __init__(self, int x, int y, int width, int height):
272 self.x = x 283 self.x = x