DevKit7/libctru
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

bit more comments

Browse Source
This commit is contained in:
Lectem 2015-03-23 23:54:46 +01:00
parent 80a41c8e20
commit 56556baaa7
1 changed files with 14 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
examples/graphics/hello_triangle/source/main.c
View File

@ -7,6 +7,10 @@
#include "mmath.h" #include "mmath.h"
/**
* Crappy assert stuff that lets you go back to hbmenu by pressing start.
*/
#define STRINGIZE(x) STRINGIZE2(x) #define STRINGIZE(x) STRINGIZE2(x)
#define STRINGIZE2(x) #x #define STRINGIZE2(x) #x
#define LINE_STRING STRINGIZE(__LINE__) #define LINE_STRING STRINGIZE(__LINE__)
@ -21,7 +25,7 @@ void _my_assert(char * text)
gfxSwapBuffers(); gfxSwapBuffers();
gspWaitForVBlank(); gspWaitForVBlank();
}while(aptMainLoop()); }while(aptMainLoop());
exit(0); //should stop the program and clean up our mess
} }
@ -127,10 +131,12 @@ void gpuUIEndFrame()
GPU_FinishDrawing(); GPU_FinishDrawing();
GPUCMD_Finalize(); GPUCMD_Finalize();
GPUCMD_FlushAndRun(NULL); GPUCMD_FlushAndRun(NULL);
gspWaitForP3D(); gspWaitForP3D();//Wait for the gpu 3d processing to be done
//Draw the screen //Copy the GPU output buffer to the screen framebuffer
//See http://3dbrew.org/wiki/GPU#Transfer_Engine for more details about the transfer engine
GX_SetDisplayTransfer(NULL, gpuFBuffer, 0x019001E0, (u32*)gfxGetFramebuffer(GFX_TOP, GFX_LEFT, NULL, NULL), 0x019001E0, 0x01001000); GX_SetDisplayTransfer(NULL, gpuFBuffer, 0x019001E0, (u32*)gfxGetFramebuffer(GFX_TOP, GFX_LEFT, NULL, NULL), 0x019001E0, 0x01001000);
gspWaitForPPF(); gspWaitForPPF();
//Clear the screen //Clear the screen
GX_SetMemoryFill(NULL, gpuFBuffer, clearColor, &gpuFBuffer[0x2EE00], GX_SetMemoryFill(NULL, gpuFBuffer, clearColor, &gpuFBuffer[0x2EE00],
0x201, gpuDBuffer, 0x00000000, &gpuDBuffer[0x2EE00], 0x201); 0x201, gpuDBuffer, 0x00000000, &gpuDBuffer[0x2EE00], 0x201);
@ -146,7 +152,10 @@ void gpuUIEndFrame()
//Viewport (http://3dbrew.org/wiki/GPU_Commands#Command_0x0041) //Viewport (http://3dbrew.org/wiki/GPU_Commands#Command_0x0041)
GPU_SetViewport((u32 *)osConvertVirtToPhys((u32)gpuDBuffer), GPU_SetViewport((u32 *)osConvertVirtToPhys((u32)gpuDBuffer),
(u32 *)osConvertVirtToPhys((u32)gpuFBuffer), (u32 *)osConvertVirtToPhys((u32)gpuFBuffer),
0, 0, 240*2, 400); //Our screen is 400*240, and we actually have 2 framebuffers, even without 3D mode activated 0, 0,
//Our screen is 400*240, but the GPU actually renders to 400*480 and then downscales it SetDisplayTransfer bit 24 is set
//This is the case here (See http://3dbrew.org/wiki/GPU#0x1EF00C10 for more details)
240*2, 400);
GPU_DepthMap(-1.0f, 0.0f); //Be careful, standard OpenGL clipping is [-1;1], but it is [-1;0] on the pica200 GPU_DepthMap(-1.0f, 0.0f); //Be careful, standard OpenGL clipping is [-1;1], but it is [-1;0] on the pica200
@ -207,7 +216,7 @@ int main(int argc, char** argv)
1, // number of attributes 1, // number of attributes
(u32 *) osConvertVirtToPhys((u32) triangle_data), (u32 *) osConvertVirtToPhys((u32) triangle_data),
GPU_ATTRIBFMT(0, 3, GPU_FLOAT),//We only have vertices GPU_ATTRIBFMT(0, 3, GPU_FLOAT),//We only have vertices
0xFFFE,//Attribute mask, in our case 0b1110 0xFFFE,//Attribute mask, in our case 0b1110 since we use only the first one
0x0,//Attribute permutations (here it is the identity) 0x0,//Attribute permutations (here it is the identity)
1, //number of buffers 1, //number of buffers
(u32[]) {0x0}, // buffer offsets (placeholders) (u32[]) {0x0}, // buffer offsets (placeholders)