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

update + more details

Browse Source 
This example has been updated to use the latest enums of ctrulib, and give
more details/better usage of the GX commands
This commit is contained in:
Lectem 2015-06-03 20:08:24 +02:00
parent 876fd4467b
commit ea93b0196b
1 changed files with 17 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
examples/graphics/hello_triangle/source/main.c
View File

@ -39,6 +39,11 @@ void _my_assert(char * text)
//should stop the program and clean up our mess //should stop the program and clean up our mess
} }
//falgs used for transfer from GPU output buffer to the actual framebuffer
#define DISPLAY_TRANSFER_FLAGS \
(GX_TRANSFER_FLIP_VERT(0) | GX_TRANSFER_OUT_TILED(0) | GX_TRANSFER_RAW_COPY(0) | \
GX_TRANSFER_IN_FORMAT(GX_TRANSFER_FMT_RGBA8) | GX_TRANSFER_OUT_FORMAT(GX_TRANSFER_FMT_RGB8) | \
GX_TRANSFER_SCALING(GX_TRANSFER_SCALE_NO))
@ -74,10 +79,10 @@ shaderProgram_s shader; //the program
Result projUniformRegister =-1; Result projUniformRegister =-1;
Result modelviewUniformRegister =-1; Result modelviewUniformRegister =-1;
#define RGBA8(r,g,b,a) ((((r)&0xFF)<<24) | (((g)&0xFF)<<16) | (((b)&0xFF)<<8) | (((a)&0xFF)<<0)) #define ABGR8(r,g,b,a) ((((r)&0xFF)<<24) | (((g)&0xFF)<<16) | (((b)&0xFF)<<8) | (((a)&0xFF)<<0))
//The color used to clear the screen //The color used to clear the screen. ctrulib defaults to the ABGR format
u32 clearColor=RGBA8(0x68, 0xB0, 0xD8, 0xFF); u32 clearColor=ABGR8(0x68, 0xB0, 0xD8, 0xFF);
//The projection matrix //The projection matrix
static float ortho_matrix[4*4]; static float ortho_matrix[4*4];
@ -121,10 +126,6 @@ void gpuInit()
initOrthographicMatrix(ortho_matrix, 0.0f, 400.0f, 0.0f, 240.0f, 0.0f, 1.0f); // A basic projection for 2D drawings initOrthographicMatrix(ortho_matrix, 0.0f, 400.0f, 0.0f, 240.0f, 0.0f, 1.0f); // A basic projection for 2D drawings
SetUniformMatrix(projUniformRegister, ortho_matrix); // Upload the matrix to the GPU SetUniformMatrix(projUniformRegister, ortho_matrix); // Upload the matrix to the GPU
//Flush buffers and setup the environment for the next frame
gpuEndFrame();
} }
void gpuExit() void gpuExit()
@ -145,12 +146,17 @@ void gpuEndFrame()
gspWaitForP3D();//Wait for the gpu 3d processing to be done gspWaitForP3D();//Wait for the gpu 3d processing to be done
//Copy the GPU output buffer to the screen framebuffer //Copy the GPU output buffer to the screen framebuffer
//See http://3dbrew.org/wiki/GPU#Transfer_Engine for more details about the transfer engine //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, // Use ctrulib's gx command buffer
gpuFBuffer, GX_BUFFER_DIM(240, 400),
(u32*)gfxGetFramebuffer(GFX_TOP, GFX_LEFT, NULL, NULL), GX_BUFFER_DIM(240, 400),
DISPLAY_TRANSFER_FLAGS);
gspWaitForPPF(); gspWaitForPPF();
//Clear the screen //Clear the screen
GX_SetMemoryFill(NULL, gpuFBuffer, clearColor, &gpuFBuffer[0x2EE00], //See http://3dbrew.org/wiki/GSP_Shared_Memory#Trigger_Memory_Fill for the width0 and width1 arguments (control bits)
0x201, gpuDBuffer, 0x00000000, &gpuDBuffer[0x2EE00], 0x201); GX_SetMemoryFill(NULL,// Use ctrulib's gx command buffer
gpuFBuffer, clearColor, &gpuFBuffer[400*240],0x201, // Fill the framebuffer with clearcolor. 32bit values
gpuDBuffer, 0x00000000, &gpuDBuffer[400*240], 0x201);// Fill the depthbuffer with clearcolor. 32bit values
gspWaitForPSC0(); gspWaitForPSC0();
gfxSwapBuffersGpu(); gfxSwapBuffersGpu();
@ -164,9 +170,7 @@ void gpuEndFrame()
GPU_SetViewport((u32 *)osConvertVirtToPhys((u32)gpuDBuffer), GPU_SetViewport((u32 *)osConvertVirtToPhys((u32)gpuDBuffer),
(u32 *)osConvertVirtToPhys((u32)gpuFBuffer), (u32 *)osConvertVirtToPhys((u32)gpuFBuffer),
0, 0, 0, 0,
//Our screen is 400*240, but the GPU actually renders to 400*480 and then downscales it SetDisplayTransfer bit 24 is set 240, 400);//Our screen is 400*240, but remember that the screen is sideways, hence using w=240 and h=400
//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